A 1960 kg truck traveling north at 30 km/h turns east and accelerates to 54 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?

2) A rocket is shot straight up to a height of 120.0 m where it explodes causing the rocket to split into two parts that weigh ma=2.40 kg and me=0.55 kg respectively. 1380 J of chemical energy was transformed into kinetic energy of the two parts (i.e., 1380 J= KA + Kg). a) What is the speed of each part, vA and vB, just after the explosion? b) What is the time taken for the parts to reach the ground after the explosion?(It is observed that the two parts hit the ground at the same time) c) What is the distance between the points on the ground (d) where they land? (Assume that the ground level and neglect air resistance). Object B Object A VA and ma Va and ma h= 120.0 m

A 2350 kg truck traveling north at 43 km/h turns east and accelerates to 61 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum? (a) Number i Units (b) Number Units kg-m/s or N-s

A teacher attending a meeting decided to check what would happen with kinetic mercy if she changed the momentum. She decided to conduct an experiment using a dynamics cart. The student measured the speed of the cart as she released it from inclined surfaces with different slopes. She was able to increase the momentum by a factor of 17. By what factor did the kinetic energy change.