# Physics

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. :)

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

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

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

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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

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5. Thankyoy

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6. thanks

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