Question

In the terminology a 500-N block, the 500-Nrefers to the block's: a)mass b)force c)weight d)none of theabove.

Answer 1

Answer: b) Force

Explanation:

a) Mass is defined as the amount of matter contained in the body.

S.I unit of Mass is kg.

b) Force is defined as the product times acceleration.

$Force=mass\times acceleration$

$Force=kg\times m/s^2=kgms^{-2}=N$  $1kgms^{-2}=1Newton(N)$

S.I unit of Force is newton.

c) Work is defined as a force causing the movement or displacement of an object.

work=$mass\times acceleration\times height$

work=$kg\times m/s^2\times m=kgm^2s^{-2}=J$

$1kgm^2s^{-2}=1Joule(J)$

S.I unit of work is Joule