A flatbed truck is carrying a crate along a level road. The coefficient of static friction between the load and the bed is 0.40. The truck accelerates forward and the crate stays in its place on the truck bed.
In what direction is the force that the bed exerts on the crate? A) forward
B) backward
C) toward the center of the road
D) There is no frictional force because the crate does not move with respect to the bed.
E) There is not enough information to answer this question.
Question 2
The Schwarzchild radius is defined for a given mass M as the radius for which the escape velocity would be exactly equal to the speed of light, c. What is the expression for this radius in terms of G, M, and c?
What will be an ideal response?
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