Computer the initial velocity of a 100g (mass) projectile that is launched by stretching a rubber band by 10cm. Assume the rubber band has an elastic constant of 50 KN/m and obeys a F = 4KS law. Hints: Potential (elastic) energy = FS (force x distance stretched) = KS x S Initial Velocity = Square root of[(2 x energy )/ mass]

A. 0.1 m/s
B. 1 m/s
C. 10 m/s
D. 100 m/s
E. No correct answer is available

Question

Computer the initial velocity of a 100g (mass) projectile that is launched by stretching a rubber band by 10cm. Assume the rubber band has an elastic constant of 50 KN/m and obeys a F = 4KS law. Hints: Potential (elastic) energy = FS (force x distance stretched) = KS x S Initial Velocity = Square root of[(2 x energy )/ mass]

A. 0.1 m/s
B. 1 m/s
C. 10 m/s
D. 100 m/s
E. No correct answer is available

anonymous · Answer

:)