Asked Dec 17, 2019

A man exerts a horizontal force of 125 N on a crate with a
mass of 30.0 kg. (a) If the crate doesn’t move, what’s the magnitude
of the static friction force? (b) What is the minimum
possible value of the coefficient of static friction between the
crate and the floor?


Expert Answer

Step 1


Mass of the crate = 30 kg

Force applied by the man = 125 N

Step 2

Calculating the value of...


Image Transcriptionclose

The free body diagram for the given condition: F, mg Where F is the force applied and F; is the static friction force. Equation for motion of the crate, F -F; = ma As it is given that for F = 125 N, the box does not move. %3D Hence, 125 N-F: = m (0) = 0 Or F, = 125 N So, the value of friction force would be 125 N.


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: What does it mean to say something is in mechanical equilibrium?

A: Equilibrium is a state of system, which remains same throughout the time in reference to a predefine...


Q: A juggler throws a bowling pin straight up in the air. Afterthe pin leaves his hand and while it is ...

A: The juggler throws a bowling pin straight up in the air. The pin is moving upwards and the accelerat...


Q: A small mailbag is released from a helicopter that is descendingsteadily at 1.50 m/s. After 2.00 s, ...

A: a)Let the downward direction is taken as negative and upward direction as positive. Newtons equation...


Q: A certain corner of a room is selected as the origin of a rectangularcoordinate system. If a fly is ...

A: According to the Pythagoras theorem, the formula to find the distance is,


Q: One aeroplane travels due north at 300km/h while another travels due south at 300km/h. Are their spe...

A: Velocity is the rate of change of displacement of an object. It is a vector quantity having both mag...


Q: If you push on a heavy box that is at rest, you must exert someforce to start its motion. Once the b...

A: For a stationary block the resisting force is static frictional force.For a block in motion the resi...


Q: An object moving with uniform acceleration has a velocityof 12.0 cm/s in the positive x - direction ...

A: Given,Velocity of the object, u = 12.0cm/s when the x-coordinate is x1 = 3.00cm.The x-coordinate of ...


Q: A football receiver running straight downfield at 5.50 m/s is 10.0 m in front of the quarterback whe...

A: Given information:Speed of the receiver (vr) = 5.50 m/sAngle at which the ball is thrown (θ) = 250Th...


Q: What type of path does a moving object follow in the absence of force?

A: Click to see the answer