Question 17 Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a oor in a time interval t. The linear momentum of the crate is Fv. 0 True False Question 18 Consider a situation where you carry a 20-N box up a flight of stairs, raising its elevation by 5 m. The work you do is 4 J. 0 True 0 False Question 19 Conservation laws can be used even when the details of what is occurring inside a system aren't known. 0 True 0 False