How Much Force Is Needed to Push a Piano Up a Ramp?

Thread starter Edwardo_Elric
Start date Jul 26, 2007
Tags

Equilibrium Law Newton's law

AI Thread Summary

To push a 160kg piano up a 36.9-degree ramp at constant velocity, the applied force must counteract the component of the weight acting down the ramp. The relevant equation is the sum of forces in the x-direction, leading to Fman = wsin(alpha). Calculating this gives Fman = (160kg)(9.8)(sin(36.9)), resulting in a force of 941N. The calculation was confirmed as correct by another participant in the discussion. Understanding the relationship between weight, angle, and force is crucial for solving similar physics problems.

Jul 26, 2007

Edwardo_Elric

Homework Statement

A man pushing a piano with a mass 160kg at constant velocity up a ramp that is inclined at 36.9 degrees above the horizontal. Neglect friction. If the force applied by the man is parallel to the incline, calculate the magnitude of this force.

Homework Equations

The Attempt at a Solution

summation of Fx = wsin(alpha) - Fman = 0
Fman = (160kg)(9.8)(sin(36.9))
= 941N

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Jul 26, 2007

marlon

correct

marlon

Jul 26, 2007

Edwardo_Elric

ty for checking

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