Question

Akhil has to lift a load of $800N$ onto a platform of $2m$ height. Instead, he pushes the load up a ramp $4m$ long. Find the force required to roll the load up the ramp.

• A. $600N$
• B. $800N$
• C. $300N$
• D. $400N$

Answer 1

The correct option is D $400N$

From FBD of load, the force parallel to the plane is the required force to roll the load up the ramp.

$F=mg\sin \theta =800\times \frac{2}{4}=400N$