Question

A tired squirrel of mass 1kg does push ups by applying a force to elevate it’s centre of mass by 5cm as shown in the following figure. Estimate the number of push ups that a tired squirrel must do in order to do appropriately 5.0 J of work. Take g=10 ms-2

Answer 1

n (mgh) = 5
n (1 * 10 *.05) = 5
.5 n = 5
5n = 50
n = 10