290 kg piano slides 4.0 m down a 30 degree incline and is, Ask an Expert

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Q1. A 2.00 kg block is in equilibrium on an incline of angle delta = 60 degree. Find F net of the incline on the block.

Q2. A 20kg mass, released from rest, slides 6 meters down a frictionless plane inclined at an angle of 30 degrees with the horizontal and strikes a spring of spring constant k = 200 N/M.

Q3. 290 Kg piano slides 4.0 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is .40.

A) Calculate the force exerted on man
B) calculate the work done by the man on piano
C) calculate the work done by the friction force
D)What is the work done by force of gravity?
E) What is the net work done on piano?

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