What is the acceleration at the coins highest point?

Question

A coin is thrown straight up and reaches its highest point then falls back down again. The up direction is positive. When the coin is at its highest point what is the direction of the acceleration?

On the way down?

Any help appreciated. Thanks.

Answer 1

acceleration is always constant

its the velocity that will change

when you throw a coin upward,it's velocity is maximum and will decrease to zero

once the velocity reaches zero, the coin will fall downward with maximum velocity and as it reaches the ground, its velocity is also zero

the rate of change of velocity (acceleration = rate of change of velocity) is always constant = 9.8m/s2

acceleration always directed downwards towards the center of the earth

Answer 2

1. acceleration=1 g down, all the time...at bottom, at top, in tween.

(as long as ignore aer drag)

Answer 3

The acceleration will always be directed downward, that is because it is the acceleration due to gravity, which is equal to 9.8 m/s^2. The acceleration will stay the same at any point of a free-fall motion. Only the velocities will change.

Answer 4

Acceleration is due to the gravity, and as gravity always acts towards the center of earth, acceleration is always vertically downwards.