Question

I need help with this

Answer 1

The work done=700 joules

The mechanical advantage=8

Explanation

1.The force with which the player throws the ball F=20 newtons

The distance traveled by the ball D=35 m

we have to calculate the work done by the ball

W=F*D

=20*35=700 N/m=700 joules

2. the input force exerted on the lever =25 N

output force of the lever=200 N

we have to calculate the mechanical advantage which is the ratio of output force to input force

MA=output /input

=200/25=8