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## Homework Statement

A 10 g ball going at a speed of 5 m/s is kicked, and flies off at an angle of 35° at 25 m/s. What was the force of kick?

Known:

m = 0.0010 kg

v

_{i}= 5 m/s

θ = 35°

v

_{f}= 25 m/s

## Homework Equations

mv

_{i}= mv

_{f}

F = ma

## The Attempt at a Solution

Would this count as an inelastic collision?

In the x direction:

.0010g(5m/s) + m(0m/s) = (.0010 kg + m)(25cos35)

After that, I'm really not sure how to get to the acceleration...