ICSE Class 10 Physics 2017 Solved Paper
© examsnet.com
Question : 4
Total: 65
If the power of a motor be 100 KW , at what speed can it raise a load of 50 , 000 N ?
Solution:
Given : Power = 100 kW = 100 × 1000 = 10 5 W .
Load (or Force)= 50 , 000 N , Speed = ?
We know,
Power = Force × Average Speed
∴ Average speed =
=
= 2 ms − 1
Load (or Force)
We know,
© examsnet.com
Go to Question: