Question

Give an example where velocity is zero but acceleration are not zero

Answer 1

Suppose you throw a ball upwards at some velocity vv. When you catch it again it's traveling downwards at (ignoring air resistance) a velocity of −v−v. So somewhere in between throwing and catching the ball it must have been stationary for a moment i.e. it's instantaneous velocity was zero. Obviously this was at the top of its travel.

When you throw the ball it immediately starts being accelerated downwards by the Earth's gravity, so it has a constant acceleration downwards of −9.81ms−2−9.81ms−2 (the acceleration is negative because it's reducing the velocity of the ball).

So this is an example of how there can be a non-zero acceleration (of −9.81ms−2−9.81ms−2) but there can be a moment when the ball's instantaneous velocity is zero.

Answer 2

$\huge\star\mathfrak\green{{HEY MATE....!!}}$

$\huge\boxed{\underline{\mathcal{\red{A}\green{N}\pink{S}\orange{w}\blue{E}\pink{R}}}}$.

• In case of a vertically projected body at the maximum height, its velocity is zero but it has acceleration due to gravity in the downward direction.

$<marquee>#Be Brainly...✔ </marquee>$