# physics

posted by .

A 0.155 kg baseball is thrown upward with an initial speed of 14.5 m/s.
What is the force on the ball when it reaches half of its maximum height? (Disregard friction.)
What is the force on the ball when it reaches its peak?

• physics -

M*g = 1.52 Newtons (the weight), in both cases. I assume the ball is thrown on Earth somewhere. That is why the g comes in.

## Similar Questions

1. ### Physics

A 0.150kg baseball is thrown upwards with an initial speed of 20.0 m/s. What is the force on the ball when it reaches half its maximum height?
2. ### Physics

A 0.105 kg baseball is thrown upward with an initial speed of 21.5 m/s. (a) What is the force on the ball when it reaches half of its maximum height?
3. ### physics

A 0.105 kg baseball is thrown upward with an initial speed of 12.0 m/s. (a) What is the force on the ball when it reaches half of its maximum height?
4. ### phy

A blue ball is thrown upward with an initial speed of 20.6 m/s, from a height of 0.8 meters above the ground. 2.5 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 8.2 m/s from a height of 23.7 …
5. ### college

A blue ball is thrown upward with an initial speed of 19.8 m/s, from a height of 0.5 meters above the ground. 2.4 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 7.9 m/s from a height of 22.5 …
6. ### physics

A red ball is thrown down with an initial speed of 1.2 m/s from a height of 25.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 22.9 m/s, from a height …
7. ### Physics

A red ball is thrown down with an initial speed of 1.3 m/s from a height of 28.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 24.7 m/s, from a height …
8. ### physics

You throw a baseball directly upward at time t = 0 at an initial speed of 12.5 m/s. What is the maximum height the ball reaches above where it leaves your hand?
9. ### physics

A blue ball is thrown upward with an initial speed of 24.1 m/s, from a height of 0.6 meters above the ground. 2.9 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 8.5 m/s from a height of 31.8 …
10. ### physics

You throw a baseball directly upward at time t = 0 at an initial speed of 13.3 m/s. What is the maximum height the ball reaches above where it leaves your hand?

More Similar Questions