# physics

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A 116.0 g ball is dropped from a height of 2.75 m, bounces on a hard floor, and rebounds to a height of 1.82 m. The impulse received from the floor is shown below. What maximum force does the floor exert on the ball if it is exerted for 7.00 ms?

• physics -

force*timeimpact=changemomentum=massball(vf-vi)

calculate vi, vf from the heights...remember that they are OPPOSITE signs.
calculate force.

• physics -

when calculating the velocities from the heights, what time interval would you use

and would the force be positive or negative

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