Question

A person in a wheelchair is moving up a ramp at constant speed. Their total weight is $900N$. The ramp makes an angle of ${37}^o$ with the horizontal. Calculate the component of its weight parallel and perpendicular to the ramp.

• A. Component of weight parallel to ramp $W_{\parallel }=900\sin {37}^o$
  Component of weight perpendicular to ramp $W_{\perp }=900\cos {37}^o=520N$
• B. Component of weight perpendicular to ramp $W_{\perp }=900\sin {37}^o$
  Component of weight parallel to ramp $W_{\parallel }=900\cos {37}^o=720N$
• C. Component of weight parallel to ramp $W_{\parallel }=900\sin {37}^o$
  Component of weight perpendicular to ramp $W_{\perp }=900\cos {37}^o=420N$
• D. Component of weight parallel to ramp $W_{\parallel }=900\sin {37}^o$
  Component of weight perpendicular to ramp $W_{\perp }=900\cos {37}^o=320N$

Answer 1

The correct option is B Component of weight perpendicular to ramp $W_{\perp }=900\sin {37}^o$

Component of weight parallel to ramp $W_{\parallel }=900\cos {37}^o=720N$
Component of weight perpendicular to ramp $=900\cos {37}^0$

Component of weight parallel to ramp $=900\sin {37}^0$

Hence,

option $B$ is correct answer