A block of mass m witha given inital speed slides down a rough incline with constant speed. If a smaller block that has a mass of 4m were placed on the same incline with the same initial speed, it would

a. accelerate down the incline with an acceleration significantly less than that of the smaller block
b. accelerate down the incline with an acceleration significantly greater than that of the smaller block
c. slowly slide down the incline and then stop
d. not move
e. slide down at a constant speed

c. Slowly slide down the incline and then stop.

Explanation:

The first block slides down a rough incline since friction forces are strong enough to countereffect the effects of gravity forces and friction force is directly proportional to mass. Hence, a greater mass means higher friction forces. Net acceleration is zero.

The smaller block has a greater mass, it slides down the incline and decelerates before stopping. Net acceleration is negative.  

The correct answer is c.

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.