a) A truck and a car collided head on. A police officer assumes that since the car was destroyed, whereas the truck was only slightly dented, the truck must have exerted a stronger force an the car (and therefore must have been going faster). |s he correctin this assumption? Explain Whey or Whey Mot b Anoastronaut is floating in space. She throws a 5 kg hammer forwards, away from her, with a force of 50 N If the astronaut (in her space suit) has a total mass of 92 kg, determine the acceleration of both the hammer and the astronaut, I & 10 kg box is pushed with an applied force of 50 M, If itis accelerating at a rate of 2 m/s% determine: a. The net force acting on the box b, The force of friction acting on the box . The coefficient of kinetic friction