Starting from rest, a 3.35 kg block slides 2.11 m down a rough 37◦ incline. The co- efficient of kinetic frict?
Starting from rest, a 3.35 kg block slides 2.11 m down a rough 37◦ incline. The co- efficient of kinetic friction between the block and the incline is 0.464.
The acceleration of gravity is 9.8 m/s2 . Find the work done by the force of gravity. Answer in units of J
Find the work done by the friction force between block and incline.
Answer in units of J
Find the work done by the normal force. Answer in units of J
Please.
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Verified answer
sin 37° = 0.6
cos 37° = 0.8
Fr = m*g*cos 37*μ = 3.35*10*0.8*0.464 = 12.43N
Er = Fr*d = 2.11*12.43 = 26.2 joule
E = mgh = 3.35*10*2.11*0.6 = 42.41 joule