Please show your solutions in paper.I will give you a very good feedback. Thank you!

3. To push a 25 kg crate up a 270 incline, a worker exerts a force of 120 N, parallel to the incline. As the crate slides 3.6 m, how much work is done on the crate by: (a) the worker, (b) the force of gravity, and (c) the normal force due to the incline? 4. A projectile with a mass of 2.4 kg is fired from a cliff 125 m high with an initial velocity of 150 m/s, directed 41.00 above the horizontal. What are (a) the kinetic energy of the projectile just after firing and (b) its potential energy? (c) Use conservation of energy to find the speed of the projectile just before it strikes the ground