What are the x and y components of a 100m/s velocity acting at an angle of 37° from the positive x axis

Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.