Multiple Choice
A 2.0-kg block situated on a frictionless incline is connected to a light spring (k = 100 N/m) , as shown. The block is released from rest when the spring is unstretched. The pulley is frictionless and has negligible mass. What is the speed of the block when it has moved 0.20 m down the plane?
A) 76 cm/s
B) 68 cm/s
C) 60 cm/s
D) 82 cm/s
E) 57 cm/s
Correct Answer:

Verified
Correct Answer:
Verified
Q13: A 2.5-kg object falls vertically downward in
Q21: Positive work can be done:<br>A)by friction on
Q22: The only force acting on a 1.8-kg
Q23: A 2.0-kg block slides down a frictionless
Q26: If the resultant force acting on
Q27: A 2.0-kg body moving along the x
Q28: A particle is subject to the
Q29: The force of static friction exerted on
Q30: Planets go around the sun in
Q60: A champion athlete can produce one horsepower