explanation and working techniques will be appreciable A piece of luggage is bei
ID: 3308219 • Letter: E
Question
explanation and working techniques will be appreciable
A piece of luggage is being loaded onto an airplane by way of an inclined conveyor belt. The bag, which has a mass of 25.0 kg, travels 6.50 m up the conveyor belt at a constant speed without slipping. If the conveyor bel is inclined at a 40.0° angle, calculate the work done on the bag by: the force of gravity (W) the normal force (WN) 6.50 m the friction force (W) the conveyor belt (Wconveyor) 40.0 the net force (We) 1590 J 1020 J 1590 J 1020 J Zero 1220 J 1220 J W, Whet WN Wconveyor WaExplanation / Answer
work done by gravity (g) = -mgh = 25.0*9.8*6.5*sin40 = -1023.63 J
work by normal force = 0J force is perpendicular to motion
work by friction = d *mg*sin40 = 6.5 * 25.0 * 9.8 *sin40 = 1023.63 J
work done by conveyer belt = work done by friction = 1023.63 J
Wnet=net force = 0 {there is no change in the kinetic energy of the block}
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