Asked by Lu
A cart being pulled by a 10 year old Boy with a force that is parallel to the surface. if the surface is inclined at 50° and the cart is 250kg while the surface has a coefficient of friction of 0.22 find the Normal force, Force of Friction and Force exerted by the boy
Answers
Answered by
Henry
Wt. of Cart=m*g = 250kg * 9.8N/kg=2450 N
Fp = 2450*sin50 = 1877 N. = Force
Parallel to the incline.
Fn = 2450*cos50 = 1575 N. = Normal force
Fk = u*Fn = 0.22 * 1575 = 346.5 N. =
Force of kinetic friction.
Fe-Fp-Fk = m*a
Fe-1877-346.5 = m*0 = 0
Fe-2223 = 0
Fe = 2223 N. = Force exerted by the boy.
Fp = 2450*sin50 = 1877 N. = Force
Parallel to the incline.
Fn = 2450*cos50 = 1575 N. = Normal force
Fk = u*Fn = 0.22 * 1575 = 346.5 N. =
Force of kinetic friction.
Fe-Fp-Fk = m*a
Fe-1877-346.5 = m*0 = 0
Fe-2223 = 0
Fe = 2223 N. = Force exerted by the boy.
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