MEC OF CUNY PHYS 205-WINTER Name Prof: Dr D. Mba Pbm#1 A car is traveling at...

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MEC OF CUNY PHYS 205-WINTER Name Prof: Dr D. Mba Pbm#1 A car is traveling at 10m/s. a) How fast would the car need to go to double its kinetic energy? b) By what factor does the car's kinetic energy increase if its speed is doubled to 20m/sec. Pbm#2 When a certain force is applied to 1kg standard mass its acceleration is 5.0m/sec/sec. When the same force is applied to another object the acceleration is One-fifth as much. Find the mass of the object? MEC OF CUNY PHYS 205-WINTER Name Prof: Dr D. Mba Pbm#1 A car is traveling at 10m/s. a) How fast would the car need to go to double its kinetic energy? b) By what factor does the car's kinetic energy increase if its speed is doubled to 20m/sec. Pbm#2 When a certain force is applied to 1kg standard mass its acceleration is 5.0m/sec/sec. When the same force is applied to another object the acceleration is One-fifth as much. Find the mass of the object?

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PBm 1 2 a b Inititial K E 12m x 10 Final KEf 2 ... View the full answer