Questions a and b are incorrect as we did not include the force exerted by the cables to make the velocity constant (acceleration=0ms^-2). We were in the midst of a heated discussion over c and d as our original results contradicted with the fact that when the lift is moving downwards (for c), we feel as if we are "floating" so our weight is supposed to be lesser and vice versa (for d).
No comments:
Post a Comment