ASSIGNMENT NO. ( 5 )

# ASSIGNMENT NO. ( 5 ) - 1 ASSIGNMENT NO. ( 5 ) KINETICS OF A...

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ASSIGNMENT NO. ( 5 ) – KINETICS OF A PARTICLE FORCE AND ACCELERATION NEWTON` S SECOND LAW OF MOTION 1. The 50 – kg crate shown in Fig. 1, rests on a horizontal plane for which the coefficient of kinetic friction μ = 0.3 . If the crate is subjected to a P = 400 N towing force as shown ,determine the velocity of the crate in 3 seconds starting from rest. 2. A mine car has a mass of 400 kg is subjected to a tension force, exerted by a motor M , which is varying with the time P = 3200 t 2 N , where t is in seconds. If the car was initially moving with an upward velocity of v o = 2 m / s , determine its velocity and position after two seconds. ( g = 10 m / s 2 , tanα = 8/15 ) . 3. In the position interval 0 x 8 m ,a truck of mass 600 kg is moving from rest from the origin O on the rough road for which μ = 0.15 . If the truck is acted upon by a horizontal force F = 600 ( x + 6 ) N and a resisting force R=50 3 x 2 N , where x is in meters, determine the acceleration and

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## This note was uploaded on 12/21/2010 for the course ENGINEERIN mp108 taught by Professor Elbarki during the Spring '08 term at Alexandria University.

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ASSIGNMENT NO. ( 5 ) - 1 ASSIGNMENT NO. ( 5 ) KINETICS OF A...

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