Question

Maria throws a ball straight up with an initial velocity of 10 m/s.

What is its velocity at the highest point?
What is its velocity when it returned to the elevation from where it is thrown ?
What is its acceleration at the highest point?
What is its acceleration just before it hits the ground?
After 1 sec what is the acceleration of the ball?

I need it asap. Super thankyouuuu. :)

Answer 1

clearly, v=0 at highest point (ball stops and starts to fall)
arrival speed = departure speed
a = -9.81 always (gravity)

Answer 2

what is its velocity when it returned to the elevation from where it was thrown?

Answer 3

cannot be determined
0 m/s
0 m/s2
-10 m/s

Answer 4

Velocity at the highest point- 0m/s
Velocity when it returned to the elevation from where it was thrown-0m/s
Acceleration at the highest point-0m/s^2
Acceleration just before it hits the ground= 9.8m/s^2(acceleration on gravity)
Acceleration of the ball after 1 second = -9.8m/s^2

Answer 5

Thankyoy

Answer 6

thanks