Homework Help: Physics

Posted by Liz on Friday, October 19, 2012 at 1:20pm.

30. A truck of mass 2250 kg is used to pull a 330 kg trunk out of an old quarry as shown below. There is 550 N of rolling resistance for the truck. Ignore mass and friction of the pulley. (a) If the trunk is accelerated upward at 2.00 m/s2 what is the minimum amount of horizontal force the truck’s drive wheels exert on the ground? (b) For the same conditions what is the tension in the towrope?

Physics - Elena, Friday, October 19, 2012 at 2:13pm
m1=2250 kg, m2 =330 kg, R=550 N, a= 2 m/s²

m1•a=F-R-T
m2•a =T- m2•g
a(m1+m2)=F-R-T+T-m2•g
F= a(m1+m2) +m2•g+R=...
T=m2(a+g)=…

Answer this Question

Related Questions

physics - 11.2 The baggage truck A has a mass of 800 kg and is used to pull two...
physics - Two children hang by their hands from the same tree branch. The branch...
Physics - Two children hang by their hands from the same tree branch. The branch...
Physics - A trunk of mass m = 1.100 kg is pushed a distance d = 32.0 cm up an ...
physics - a truck with a mass of 2100 kg travels at a constant speed of 75 km/h...
Physics. PLEASE HELP!! - A small car of mass 985 kg is parked behind a small ...
physics - 9)Which has more momentum? A .1 kg toy truck moving at 1012 m/s or a ...
physics - A delivery truck with a mass of 1700 kg is stopped in the street w/o ...
Year 11 Maths B - The mean mass of 35 bags of potatoes on a truck is 49 kg. ...
Physics - Read each statement below. For each situation, calculate vi, vf, pi, ...

For Further Reading

First Name:
School Subject:
Answer: