What force does a trampoline have to apply to a 45.0-kg gymnast to accelerate her straight up at 7.50 m/s2 ? Note that the answer is independent of the velocity of the gymnast—she can be moving either up or down, or be stationary.

Solution 18PE

We are required to calculate the force on the gymnast that a trampoline would apply to her if she has an upward acceleration.

Step 1 of 2

The acceleration due to gravity m/s2

The upward acceleration of the gymnast 7.50 m/s2

Therefore, the net acceleration of the gymnast m/s2

m/s2