At what height h above the ground does the projectile have a speed of 0. 5v?.

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

Which describes an object in projectile motion? check all that apply.a.gravity acts to pull the object downb.the object moves in a straight path.c.the forward velocity of the object is 0 m/s.d.the object’s inertia carries it forward.e.the path of the object is curved.