PHYSICS HIGH SCHOOL

Suppose you ride your bicycle to the library traveling at 0.5 km/min. It takes you 25 minutes to get to the library. How far did you travel?

Answers

Answer 1
Answer:
If you cover 0.5 km every minute, and keep it up for 25 minutes,
then you will cover

0.5  +  0.5  +  0.5  +  0.5  +  0.5  +
0.5  +  0.5  +  0.5  +  0.5  +  0.5  +
0.5  +  0.5  +  0.5  +  0.5  +  0.5  +
0.5  +  0.5  +  0.5  +  0.5  +  0.5  +
0.5  +  0.5  +  0.5  +  0.5  +  0.5     =   12.5 km.

An easier way to write the same thing is

             (25) times (0.5 km)  =  12.5 km.

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Answers

Answer:

Option (d) is correct.

Explanation:

Work done is given by :

W = Fd, where F is force and d is displacement

Unit of work done :

The SI unit of force is Newton (N) and that of displacement is meter (m). So, the unit of work done is N-m. It is call Joule. It means that the unit of work done is Joule.

Power is given by rate at which the work is done. It is given by :

P = W/t, W is work done and t is time

Unit of power:

Unit of work is Joule (J) and that of time is second (s). It means that the unit of power is Watt and it is equal to Joule/second

Hence, the correct option is (d) "The unit for work is a joule. The unit for power is a watt, which is a joule per second".

Answer: The unit for work is a joule. The unit for power is a watt, which is a joule per second.

Explanation:

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Answers

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Answers

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Answers


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Answers

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Answers

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