Multiple Choice
The velocity of the center of mass of a system of particles changes as v = 4.5 t + 2.4 t2 + 1.1 t3, where v is in meters per second.If the system starts from rest at t = 0, what is its acceleration at t = 3.0 s?
A) 7.1 m/s2
B) 14 m/s2
C) 20 m/s2
D) 49 m/s2
E) 65 m/s2
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q48: If a projectile hits a stationary target,
Q49: The center of mass of a system
Q50: The direction of the impulse on a
Q51: If a projectile hits a stationary target,
Q52: A rifle of mass M is initially
Q54: At one instant of time a rocket
Q55: A golf ball of mass m is
Q56: A 3.0-kg cart and a 2.0-kg cart
Q57: A 1000-kg space probe is motionless in
Q58: The physical quantity "impulse" has the same