1.calculate the work done by a man who pushes a crate 4.00 m up along a ramp that makes and angle of 20.0 with the horizontal and exerts force of 500n

2.a spring with spring constant of 450n/m is compressed by 0.13m how much energy is stored

3.a box pushed across the floor for a distance of 5 meters with force 50 newtons in 5 seconds

4. a 4,000-kilogram truck travels in a straight line at 10.0m/sec what is the momentum
pasagot po aagad exam kopo kasi ngayon kailangan kolang po agad thanks