Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops suddenly in an accident or even in braking. Assume, for example, that a 9,000 kg load sits on the flat bed of a 25,000 kg truck moving at 15.0 m/s. Assume that the load is not tied down to the truck, but has a coefficient of friction of 0.550 with the flat bed of the truck. A) Calculate the minimum stopping distance for which the load will not slide forward relative to the truck.
B) Is any piece of data unnecessary for the solution?
a. mass of the load.
b. mass of the truck.
c. velocity.
d. coefficient of static friction.
e. all are necessary.