A large wedge with a mass of 10 kg rests on a horizontal frictionless surface, as shown. A block with a mass of 5.0 kg starts from rest and slides down the inclined surface of the wedge, which is rough. At one instant the vertical component of the block's velocity is 3.0 m/s and the horizontal component is 6.0 m/s. At that instant the velocity of the wedge is:
A) 3.0 m/s left
B) 3.0 m/s, right
C) 6.0 m/s, right
D) 6.0 m/s, left
E) 17 m/s, right

Question

A large wedge with a mass of 10 kg rests on a horizontal frictionless surface, as shown. A block with a mass of 5.0 kg starts from rest and slides down the inclined surface of the wedge, which is rough. At one instant the vertical component of the block's velocity is 3.0 m/s and the horizontal component is 6.0 m/s. At that instant the velocity of the wedge is: 
A) 3.0 m/s left 
B) 3.0 m/s, right 
C) 6.0 m/s, right 
D) 6.0 m/s, left 
E) 17 m/s, right

Quizplus · Accepted Answer

The Answer of A large wedge with a mass of 10 kg rests on a horizontal frictionless surface, as shown. A block with a mass of 5.0 kg starts from rest and slides down the inclined surface of the wedge, which is rough. At one instant the vertical component of the block's velocity is 3.0 m/s and the horizontal component is 6.0 m/s. At that instant the velocity of the wedge is: 
A) 3.0 m/s left 
B) 3.0 m/s, right 
C) 6.0 m/s, right 
D) 6.0 m/s, left 
E) 17 m/s, right

A Large Wedge with a Mass of 10 Kg Rests