Saved Bookmarks
| 1. |
Boy of mass 40 kg climb up the stairs and reach the roof at the height of 10 meters with a weight of 10 kg in his hand in 1 min . how much power spend by the boy |
|
Answer» Answer:power=force by VELOCITY velocity =height/time =10/60 =0.16 and force=weight =MASS by gravity THEREFORE weight =40 by 10 =50N THEREFORE POWER= 50 by 0.16 =8 watt Explanation: |
|