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A force is any interaction that tends to change the motion of an object. In other words, a force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate. and this means that they will both require the same force for lifting the load.
Work done=Force*displacement, displacement is the height of lifting the load and hence is also the same regardless of the time spent lifting the load.
Work hence will be the same for both Coolie
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My confusion is still not clear. See you say force = mass × acceleration. Now the first coolie A takes 1 minute that means the acceleration was more than of Coolie B who took 2 minutes. Right ? Then force for coolie A is greater than of coolie B right? Then how ?
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