Ask a New Question

Question

A 5 kg block rests on a horizontal surface. Determine the horizontal force required to accelerate the block at 3 m/s^2. The frictional coefficient is 0.5.

Fnet=mass(accer.)
FH=5kg (3m/s^2)= 15N
I don't know what to make of the frictional coefficient
10 years ago

Answers

Henry
m*g = 5kg * 9.8N./kg = 49 N.

Fk = u*mg = 0.5 * 49 = 24.5 N. = Force of kinetic friction.

Fx-Fk = m*a
Fx-24.5 = 5 * 3 = 15
Fx = 15 + 24.5 = 39.5 N.
10 years ago

Related Questions

A 20 kg sled rests on a horizontal surface. if it takes 75 N to start the sled in motion and 60 N to... A 0.87 kg block is shot horizontally from a spring, as in the example above, and travels 0.497 m up... the 3 lb block A rests on a surface for which the coefficient of kinetic is Mk=.30 determine the dis... A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and there is... A 55.0kg box rests on a horizontal surface. The coefficient of static friction between the box and... A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizon... A 500 g block lies on a horizontal tabletop. The coefficient of kinetic friction between the block a... A block of 25 is pulled horizontally on a rough surface by the force 120N.the coefficient of frictio...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use