Question

Asked Dec 17, 2019

41 views

Starting from rest, a 5.00 - kg block slides 2.50 m down

a rough 30.0° incline. The coefficient of kinetic friction

between the block and the incline is μ_{k} = 0.436. Determine

(a) the work done by the force of gravity, (b) the work done by

the friction force between block and incline, and (c) the work

done by the normal force. (d) Qualitatively, how would the

answers change if a shorter ramp at a steeper angle were used

to span the same vertical height?

Step 1

a)

the work done by the force of gravity is

Step 2

substitute the given values in the above equation to calculate *W*

Step 3

b)

the expression for the work done b...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: A dockworker loading crates on a ship finds that a 20.0-kgcrate, initially at rest on a horizontal s...

A: Let the mass of the crate be denoted by m. Let the coefficient of static friction be denoted by μs a...

Q: Does fluid friction vary with speed?With area of contact?

A: The resistance force that opposes the motion of an object through fluid is known as the fluid fricti...

Q: Find a conversion factor to convert from miles per hourto kilometers per hour. (b) For a while, fede...

A: The conversion factor to convert from miles per hour to kilometres per hour is

Q: An athlete swims the length L of a pool in a time t1 andmakes the return trip to the starting positi...

A: Average velocity = displacement/timeVelocity is vector and speed is scalarTaking +x axis as +ve dire...

Q: The acceleration of a free fall is about 10m/s2 . Why does the seconds until appear twice?

A: We know, Velocity is rate of change of Displacement.and Acceleration is rate of change of Velocity.

Q: 9. X-rays reflected off a simple crystal with inter- atomic spacing of 5x1010 30° to the surface of ...

A: Given,

Q: A car starts from rest and travels for 5.0 s with a uniform accelerationof +1.5 m/s2. The driver the...

A: (a) The equation of motion is given by,

Q: A horizontal block spring oscillator of mass 15 kg on a frictionless table and a spring constant k i...

A: (a) As it takes 0.1s to reach the equilibrium position, it takes 0.4s to complete on oscillation.The...

Q: how does a pigment affect light?

A: Pigments are molecules that absorb specific wavelengths of light and reflect all others. If the ligh...