Compact Bow Can Someone Do These?

Can someone do these? - compact bow

7. [Glencoe99 11.P.57.]
An archer places an arrow from 0.25 kg to the rope. An average of 203 N force is applied to the rope of 1.3 m. In addition to pulling in the event that the air resistance is negligible. Draw bar charts of energy to solve the problem.
(a) Under the assumption that all the energy that goes into the arrow, how fast the arrow left the bow?
m / s
(b) If the arrow is shot upward from what level?
m

8. [Glencoe99 11.P.62.]
From what height would a compact car, which had been reduced to the same kinetic energy that must be driven at 95 mph? Except in the case to that of the air resistance is negligible. Draw bar charts of energy to solve the problem.
m

9. [Glencoe99 11.P.64.]
Kelli weighs 405 N and sits on a swing seat, which weighs 0.40 m above the ground. Tom puts the swing back and leave it when the seat is 1.00 m above the ground.
(a) What is the speed, Kelli moving when the swing goes by the lowest level