Science

PhysicsQ&A LibraryA dockworker pushes a 50 kg crate with a downward force of 300 Newton's, at an angle of 30 degrees with the horizontal. The coefficient of kinetic friction is 0.30.a. What is the normal force?b. WHat is the inetic friction once the crate starts moving?c. What is the acceleration of the crate?Question

Asked Dec 4, 2019

39 views

A dockworker pushes a 50 kg crate with a downward force of 300 Newton's, at an angle of 30 degrees with the horizontal. The coefficient of kinetic friction is 0.30.

a. What is the normal force?

b. WHat is the inetic friction once the crate starts moving?

c. What is the acceleration of the crate?

Step 1

(a) write the expression for net vertical force

Step 2

Substitute the values

Step 3

(b) Write the expression for k...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: A 32.3 kg crate rests on a horizontal floor, and a 68.8 kg person is standing on the crate. Determin...

A: a)Magnitude pf normal force exerted by the floor on the crate is the total force exerted by system o...

Q: Three polarizing filters are stacked with polarizing axes ofthe second and third filters at 30.0∘and...

A: (a)Consider the unpolarized light incident on the stack, intensity of light is 110 W/cm2.According t...

Q: Question #16 please

A: The temperature changes,

Q: The figure shows block 1 of mass 0.155 kg sliding to the right over a frictionless elevated surface ...

A: Since the spring does not affect the collision, we can use the elastic collision equations.The mass ...

Q: #1

A: Hey, since there are multiple subparts questions posted, we will answer first three questions. If yo...

Q: the steel I-beam in the drawing has a weight of 1.51 X 103 N and is being lifted at a constant veloc...

A: The expression for the tension in each cable is,

Q: a heater is left on and uses 0.58 A when plugged into a 120 V line. if electric power costs 12 cent...

A: Assume that the current and voltage are RMS value, and the heater is purely resistive load.The power...

Q: A 0.1-kg aluminum sphere is dropped from the roof of a 55m tall building. If 65% of the thermal ener...

A: The total energy possessed by the aluminum sphere when it is at a height h is equal to the potential...

Q: 118. As an object initially at rest on a horizontal surface is set in motion, the magnitude of the f...

A: The force of friction between the object and the surface depends on the normal force. When the objec...