The basic reason the two balls hit the ground at the same time is that the ball is moving faster in the case of the parabolic motion when compared with the straight down motion.
Why do projectiles hit the ground at the same time?
The horizontal and vertical motions of a projectile are independent of each other. So two objects falling under the influence of gravity from the same height will reach the ground simultaneously, regardless of their horizontal velocities.
Which marble reach the ground first A or B?
1 Expert Answer
Feather has less mass than the marble, and the drag (air resistance) will be more because of its shape so (drag/m) will be greater than for the marble, so acceleration less, so marble reaches the ground first .
Why does a ball thrown horizontally at chest height land at the same instant to a similar mass is dropped vertically downwards?
Its y-axis velocity, the speed at which it moves downwards, is determined purely by gravity, just as in the case of the dropped ball, as none of the throwing force is directed downwards. Both the balls have the same velocity along the y-axis and therefore should reach the ground at the same time.
Why does a dropped ball hit the ground at the same time as a ball thrown horizontally?
The hand can no longer impart any force, as the ball has left it. As gravity is the only force in both cases, both balls will hit the ground at the same time.
22 related questions foundWhy do two balls fall at the same time?
Gravity is the force that causes things to fall to earth. When you drop a ball (or anything) it falls down. Gravity causes everything to fall at the same speed. This is why balls that weigh different amounts hit the ground at the same time.
Why did the ball hit the ground first?
So, back to the bowling ball and the feather: The reason the bowling ball reaches the ground first is because air resistance has a bigger impact on the feather as it falls. That air resistance slows the feather down while not having much of an impact at all on the bowling ball.
When an object has both a vertical and horizontal motion at the same time?
In two-dimensional projectile motion, such as that of a football or other thrown object, there is both a vertical and a horizontal component to the motion. Projectile Motion: Throwing a rock or kicking a ball generally produces a projectile pattern of motion that has both a vertical and a horizontal component.
Why is the horizontal motion of a projectile constant?
The horizontal motion of the projectile is the result of the tendency of any object in motion to remain in motion at constant velocity. Due to the absence of horizontal forces, a projectile remains in motion with a constant horizontal velocity.
When a ball is thrown upward its acceleration is?
The ball's acceleration is the same throughout the throw (It is 9.8 m/s2 toward the earth). The direction of the ball's motion is upward, and doesn't change. The speed of the ball will decrease as it goes higher. At the top of the motion, the speed is zero.
Which marble will reach the bottom first?
The answer is that the solid one will reach the bottom first. In that specific case it is true the solid cylinder has a lower moment of inertia than the hollow one does. (Although they have the same mass, all the hollow cylinder's mass is concentrated around its outer edge so its moment of inertia is higher.)
What force causes the marbles to fall?
Gravity: As your child builds and tests marble runs, point out that gravity is the force pulling the marble down the slope.
Why does a bowling ball and marble drop at the same time?
For example, if you ask someone what would fall faster, a bowling ball or a marble, I bet a lot of folks would say the heavier bowling ball falls faster. But in fact, if dropped from a meter or so off the ground, they'd fall at the same rate. Gravity accelerates them at the same rate, so they fall at the same rate.
Will a projectile that is thrown horizontally land on the ground at the same time as an object that is dropped?
The time required for initially horizontal projectile motion to occur is the same as the time required for the object to fall to its final height. Thus, a ball thrown horizontally will reach the ground at the same time as a ball dropped from the same height.
Why a dropped object has the same vertical velocity as an object launched horizontally?
Explain why a dropped object has the same vertical velocity as an object launched horizontally. Gravity will affect them in the same way. Vertical velocity doesn't depend on initial horizontal.
What do you think an object projected horizontally will reach the ground in the same time as an object dropped vertically?
An object projected horizontally will reach the ground in the same time as an object dropped vertically. No matter how large the horizontal velocity is, the downward pull of gravity is always the same. Horizontal velocity is constant.
Why is an airplane not a projectile?
Airplanes, guided missiles, and rocket-propelled spacecraft are sometimes also said to follow a trajectory. Since these devices are acted upon by the lift of wings and the thrust of engines in addition to the force of gravity, they are not really projectiles.
Why is projectile motion called a 2 dimensional motion?
Though it takes place in space, since the acceleration vector is only in one direction and velocities only in 2 directions, one being that of the acceleration, thus motion will be confined to 2−D plane only.
Why do projectiles follow a curved path?
projectile motion, the motion of a falling object (projectile) after it is given an initial forward velocity. Air resistance and gravity are the only forces acting on a projectile. The combination of an initial forward velocity and the downward vertical force of gravity causes the ball to follow a curved path.
How is the motion of the object affected by the horizontal and vertical components of its velocity and or acceleration?
Answer: The horizontal motion of an object is unaffected by the force of gravity for relatively short displacements. This means that the horizontal velocity is constant, while the vertical velocity is accelerating. ... This change in angle affects the motion of the object and its velocity is no longer independent.
Did the horizontal and vertical motion of the projectile affect one another?
The horizontal and vertical motions of a projectile are independent, meaning they do not affect each other. The 2-D motion of a projectile can be separated into two 1-D motions: horizontal and vertical. The horizontal motion of a projectile is always constant, if we neglect air resistance.
When speed and direction remain the same throughout a motion this is called?
The answer is uniform circular motion.
Why do two different objects hit the ground at the same time?
Because Earth gives everything the exact same acceleration, objects with different masses will still hit the ground at the same time if they are dropped from the same height.
Which falls faster an egg or a watermelon?
Some chose the egg, some the watermelon and some said the two will hit the ground at the same time. The correct answer is the last one: the two will hit the ground at the exact same time. This is because gravity accelerates all objects equally, even if one object is heavier than the other.
What will touch the ground first?
The force due to gravitation and air resistance. In the absence of air resistance, both heavy and the lighter object will hit the ground at the same time. If the air resistance is present, the air resistance will slow down the lighter object. Therefore the heavier object will hit the ground first.
