Now is the time for intense study

The farewell party is over in most of the schools. Now you have to concentrate more on your studies and perform the best in the forthcoming examinations. Have a look at what you have to study and how best you can finish the work in the available time. Learn well and perform well. Wish you all the best.


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Mechanics Questions from Mohammed

a. Determine the work done by the motor when the wheelchair starts at rest and speeds up to its normal speed.

b. Determine the maximum distance that the wheelchair can travel on a horizontal surface at its normal speed, using its stored energy. (Ignore the energy needed for it to speed up when it starts.)

c. Suppose that 0.023 percent of the power required for driving is expended against drag due to the flexing of the wheelchair’s soft rubber tires. Calculate the magnitude of the drag force.