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Two balls having different masses reach the same height when shot into the air from the ground.

If there is no air drag, which of the following statements must be true? (More than one statement may be true.)

A. Both balls left the ground with the same speed.
B. Both balls left the ground with the same kinetic energy.
C. Both balls will have the same gravitational potential energy at the highest point.
D. The heavier ball must have left the ground with a greater speed than the lighter ball.
E. Both balls have no acceleration at their highest point.

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Two identical balls are thrown directly upward, boll A at speed v and boll B at speed 2v. and they feel no air resistance. Which statement about these balls is correct?

A) Ball B will go twice as high as ball A because it had twice the initial speed.

B) Ball B will go four times as high as ball A because it had four times the initial kinetic energy.

C) The balls will reach the same height because they have the same mass and the same acceleration.

D) At its highest point, ball B will have twice as much gravitational potential energy as ball A because it started out moving twice as fast.

E) At their highest point, the acceleration of each ball is instantaneously equal to zero because they stop for an instant

Is there anybody could answer these two questions?

1.n object moves at a constant velocity of 5.5 m/s to
the southwest for an interval of 20 s. Halfway through
this interval, what is the magnitude of its instantaneous
velocity?

1. 11 m/s
2. It can be any value from 0 to 22 m/s.
3. More information is needed.
4. 5.5 m/s

2.A student throws a heavy red ball horizontally from
a balcony of a tall building with an initial speed v0.
At the same time, a second student drops a lighter blue
ball from the same balcony. Neglecting air resistance
, which statement is true?

1. The balls reach the ground at the same instant.
2. The blue ball reaches the ground first.
3. The red ball reaches the ground first.
4. Both balls hit the ground with the same speed.

thanks a lot in advance:)

a large truck collides head-on with a small compact car. during the collision:

1. A large truck collides head-on with a small compact car. During the collision: the

truck exerts the same amount of force on the car as the car exerts on the truck.
neither exerts a force on the other, the car gets smashed simply because it gets in the way of the truck.
the truck exerts a force on the care but the car does not exert a force on the truck.
the truck exerts a greater amount of force on the car than the car exerts on the truck.
the car exerts a greater amount of force on the truck than the truck exerts on the car.

2. Two metal balls are the same size, but one weighs twice as much as the other. The balls are dropped from the roof of a single-story building at the same instant of time. The time it takes the balls to reach the ground below will be:

about half as long for the lighter ball.
about the same time for both balls.
considerably less for the heavier ball, but not necessarily half as long.
about half as long for the heavier ball.
considerably less for the lighter ball, but not necessarily half as long.

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