2 years ago

A student runs 35 m east, then 12 m west. What is the distance run by the student?

2 answers:

6 0

Answer:

47 m

Explanation:

Distance is defined as the total path length traveled by the object. It is a scalar quantity. It means it does not depend on the directon.

So, the distance travelled by the student is 35 + 12 = 47 m

4 0

47m total just add them up 35 + 12 = 47

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777dan777 [17]

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3 years ago

Kipish [7]

Answer:

F = 47.6 N

Explanation:

Newton's 2nd law can be expressed as the rate of change of the total momentum, respect of time, as follows:

$F = \frac{\Delta p}{\Delta t}$

So, in order to find the average force exerted by the skater on the wall, we can find the change in momentum due to the force exerted by the wall (which is equal and opposite to the one exerted by the skater), and divide it by the time interval , as follows:

$F_{wall} = \frac{\Delta p}{\Delta t} =\frac{(48.0 kg*(-1.06m/s)}{1.07s} = -47.6 N$