A150-n box is being pulled horizontally in a wagon accelerating uniformly at 3.00 m/s2. the box does not move relative to the wagon, the coefficient of static friction between the box and the wagon's surface is 0.600, and the coefficient of kinetic friction is 0.400. the friction force on this box is closest to
a) 450 n.
b) 90.0 n.
c) 60.0 n.
d) 45.9 n

Frictional force, F = 45.9 N

Explanation:

It is given that,

Weight of the box, W = 150 N

Acceleration,

The coefficient of static friction between the box and the wagon's surface is 0.6 and the coefficient of kinetic friction is 0.4.  

It is mentioned that the box does not move relative to the wagon. The force of friction is equal to the applied force. Let a is the acceleration. So,

Frictional force is given by :

F = 45.9 N

So, the friction force on this box is closest to 45.9 N. Hence, this is the required solution.

. west

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2