An object is given a quick push up an in...

An object is given a quick push up an inclined plane. It slides up and then comes back down. It is known that the ratio of the ascent time `(t_("up"))` to the descent time `(t_("dawn"))` is equal to the coefficient of kinetic friction `(mu)`. Find the angle `theta` that the inclined plane makes with the horizontal Find also the range of `mu` for which the situation described is possible. Assume. that the coefficints of static and kinetic friction are equal.

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