A bicycle is moving at a speed v = 12.6 m/s. A small stone is stuck to one of the tires. At the instant the stone is at point A in the figure, it comes free. The velocity of the stone (magnitude and direction) relative to Earth just after release is
A) 17.8 m/s at 45º above the horizontal, towards the front of the bicycle.
B) 12.6 m/s at 45º above the horizontal, away from the bicycle.
C) 12.6 m/s at 37º below the horizontal.
D) 12.6 m/s straight up.
E) 17.8 m/s at 45º above the horizontal, towards the back of the bicycle.

Question

A bicycle is moving at a speed v = 12.6 m/s. A small stone is stuck to one of the tires. At the instant the stone is at point A in the figure, it comes free. The velocity of the stone (magnitude and direction) relative to Earth just after release is
A) 17.8 m/s at 45º above the horizontal, towards the front of the bicycle. 
B) 12.6 m/s at 45º above the horizontal, away from the bicycle. 
C) 12.6 m/s at 37º below the horizontal. 
D) 12.6 m/s straight up. 
E) 17.8 m/s at 45º above the horizontal, towards the back of the bicycle.

Quizplus · Accepted Answer

The Answer of  A bicycle is moving at a speed v = 12.6 m/s. A small stone is stuck to one of the tires. At the instant the stone is at point A in the figure, it comes free. The velocity of the stone (magnitude and direction) relative to Earth just after release is
A) 17.8 m/s at 45º above the horizontal, towards the front of the bicycle. 
B) 12.6 m/s at 45º above the horizontal, away from the bicycle. 
C) 12.6 m/s at 37º below the horizontal. 
D) 12.6 m/s straight up. 
E) 17.8 m/s at 45º above the horizontal, towards the back of the bicycle.

A Bicycle Is Moving at a Speed V = 12