During a workout, a football player pushes a blocking dummy a distance of 30 m. while pushing the dummy the same distance a second time, what would the player need to change to be certain that power output increases?
the player would need to use a greater force and take more time.
the player would need to use a greater force and take less time.
the player would need to use a smaller force and take more time.
the player would need to use a smaller force and take less time.

Answer :The player would need to use a greater force and take less time.

Explanation :

During a workout, a football player pushes a blocking dummy a distance of 30 m.

Power is defined as the work done divided by time taken i.e.

Also,

s is the distance covered.

So, Power is directly proportional to the force and inversely proportional to the time taken.

To increase power output, the player would need to use a greater force and take less time.

Hence, the correct option is (b).

show the diagram then i will answer

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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