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 - A 1230 -kg car is pushing an out-of-gear 2180 -kg truck that has a ...
- physics - A truck with mass 2000 kg tows a boat and trailer of total mass 500 kg...
- Physics - A 13,900 kg truck is moving at 23.5 m/s on a mountain road when the ...
- general physics - A 13,900 kg truck is moving at 23.5 m/s on a mountain road ...
- Gen physics - A 13,900 kg truck is moving at 23.5 m/s on a mountain road when ...
- physics - A truck of mass 8000 kg is accelerating at 5.0 m/s2 up a hill of ...
- Physics - Read each statement below. For each situation, calculate vi, vf, pi, ...
- physics - An object is shot from the back of a truck moving at 40 km/h on a ...
- physics - A truck engine transmits 28.0 { kW} (37.5 hp) to the driving wheels ...

More Related Questions