Question

A ball is thrown straight up. What is its velocity and acceleration at the top? a) Velocity at the top = 0 and acceleration at the top = 9.8 m/s2 (upwards) b) Velocity at the top = max and acceleration at the top = 9.8 m/s2 (downwards) c) Velocity at the top = max and acceleration at the top = 9.8 m/s2 (upwards) d) Velocity at the top = 0 and acceleration at the top = 9.8 m/s2 (downwards) PLZ ANSWER FAST URGENT....

Answer 1

Answer:

Option D

Explanation:

When the ball is at its peak possible position, it's velocity remains Zero. Unfortunately, this moment of zero velocity is hardly visible, since it occurs in a very very short amount of time.

Now if you ask about the acceleration at the peak possible position, it turns out to be very interesting. The acceleration remains 9.81 ms^-2.But in downward direction.In fact it is one of the very rare situations where the body is accelerated, still there is an absolute zero velocity.

Answer 2

Answer:

a ball can't be thrown this much far from me