A rough plane makes an angle of 30.0° above the horizontal and is 4.00 m long...
A rough plane makes an angle of 30.0° above the
horizontal and is 4.00 m long measured along the
slope. A block which has a mass of 10.4 kg is kicked at the bottom
and has an initial velocity of 11.4
m/s. Calculate the speed of the block at the top of the plane if
the friction force is 48.4 N.
Homework Answers
By energy conservation:
Here Vi is the initial velocity and Vf is the final velocity.
d is the distance travelled by the block:
d = l
Putting the values:
Solving for Vf we get:
Vf = 7.316 m/s
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