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Name: Period: Newton’s 2nd Law and Momentum Problems 1. Cable strength must be taken into consideration when determining the load limit to be put on a crane that is designed to lift heavy equipment. Calculate how much force is necessary to lift and accelerate a 10,000-Kg object at a rate of 1.5 m/s2? 2. NASA scientists need to know the forces necessary while launching a rocket. How much force is required to accelerate a 3,000-Kg rocket at a rate of 80 m/s2? 3. If 1000 Kilonewtons (1000 Newtons) of force are used to launch a 1,500-Kg missile, what is the acceleration? 4. How much force is required to accelerate a 1750-Kg dragster at a rate of 12 m/s2? 5. What is the mass of a dragster that achieves an acceleration of 9 m/s2 with a 10,500 Newton force? 6. How much mass can a winch pull if the load is pulled with 7,500 Newtons and accelerated at a rate of 1.2 m/s2? 7. Which football player has the most momentum: a 160-Kg linebacker running at 4 m/s or a 100-Kg tight end running at 7 m/s? 8. Which vehicle has more momentum: a 2000-Kg pick-up truck traveling at 25 m/s or a 250-Kg motorcycle traveling at 80 m/s? 9. How fast must a 90-Kg football player run to have the same momentum as a150-Kg player running at 6 m/s? 10. When a cannon is fired, Newton’s 3rd Law states that there will be an equal and opposite reaction, and momentum will be conserved. If a 20-Kg cannon ball is fired at a velocity of 980 m/s, what will the rearward velocity of a 1500-Kg cannon be if the cannon is mounted on wheels and allowed to roll freely?