The unit of work, the joule, may be defined as the work done when the point of application of a force of 1 newton is moved a distance of 1 metre in the direction of the force. Express the joule in terms of the base units of mass, length and time, the kg, m and s.
1 )
$kg m^{–1} s^2$
$kg m^2 s^2$
3 )
$kg m^2 s^{-1}$
4 )
$kg s^{–2}$
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!