For calculating work, the force and the distance must be in the same units direction magnitude 2. the lawnmower handle is at an angle to make it to push. easier harder 3. what units for time must be used in calculating power? days hours seconds

1.) Direction

2.) Easier

3.) Seconds

Explanation:

1.) Work is defined as the scalar product of force and distance. The force is applied in the same direction as that of distance.

Mathematically,

2.) From the above expression, the angle plays an important role in the calculation of work.

When , then and work done will be maximum in that case.

But, when the angle increases, the magnitude of work decreases and it becomes easier to push.

When , then and work done will be 0 which is minimum.

3.) Expression for power is given as:

Units of time which must be used in calculating power is seconds.

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