A ball is thrown vertically upwards from a point P above the ground. It rises
to the highest point Q and returns to the same point P. What is the velocity and
the force acting on the ball at the highest point?
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A ball is thrown vertically upwards from a point P above the ground. It rises
to the highest point Q and returns to the same point P. What is the velocity and
the force acting on the ball at the highest point?
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Verified answer
Answer:
Answer is A.
If we know the initial velocity, from the equation, v
2
−u
2
=2as with s = h and v = 0 at the top of the path, initial velocity is given as 'u' and a = -g then:
h =
2g
u
2
.
Therefore, the maximum height reached =
2g
u
2
.