Snowboarding cautiously down a steep slope at a speed of 7.0 m/s, Sarah, whose mass is 50.0-kilograms, is
afraid she won't have enough speed to travel up a slight uphill grade ahead of her. She extends her hand, as
her friend Trevor, having a mass of 100.0-kilograms is about to pass her traveling at 16 m/s. If Trevor
grabs her hand, calculate the speed at which the friends will be sliding.

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

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