Asked by shelly
1) a loaded cart with a mass of 96 kg sits at reat atop a 40 degree inclined plane that measures 20.5m long. accidentally the cart starts so to roll down the inclined plane with a frictional force of 5550N working against it for the intire 20.5m. deteremine the speed at the bottom og the incline plane.
2) a 1,420kg boulder at rest, begins to roll down a 52m long hillside. while rolling, the ground causes a frictional force of 12,040N. the boulder arrives at the bottom of the hillside with a speed of 19.5m/s. determine the boulder's original height.
2) a 1,420kg boulder at rest, begins to roll down a 52m long hillside. while rolling, the ground causes a frictional force of 12,040N. the boulder arrives at the bottom of the hillside with a speed of 19.5m/s. determine the boulder's original height.
Answers
Answered by
Henry
1. Wc = 96kg * 9.8N/kg = 940.8N @ 40deg = Weight of cart.
Fp = 940.8sin40 = 604.7N = Force parallel to the plane.
Fv = 940.8cos40 = 720.7n = Force perpendicular to the plane.
Ff = 555N = Force due to friction.
Fn = Fp - Ff = 604.7 - 555 = 49.7N =
Net force.
a = Fn/m = 49.7 / 96 = 0.518m/s^2.
Vf^2 = Vo^2 + 2ad
Vf^2 = 0 + 2*0.518*21.5 = 22.27,
Vf=4.7m/s = Speed at bottom of incline.
Fp = 940.8sin40 = 604.7N = Force parallel to the plane.
Fv = 940.8cos40 = 720.7n = Force perpendicular to the plane.
Ff = 555N = Force due to friction.
Fn = Fp - Ff = 604.7 - 555 = 49.7N =
Net force.
a = Fn/m = 49.7 / 96 = 0.518m/s^2.
Vf^2 = Vo^2 + 2ad
Vf^2 = 0 + 2*0.518*21.5 = 22.27,
Vf=4.7m/s = Speed at bottom of incline.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.