A force applied by an engine on the train of mass 2.05×1000000kg changes its velocity from 5ms to 25ms in 5 min.the power of the engine
Answers
Answered by
74
Hey
Power= Rate of Work Done = Mass * Acceleration * Distance covered / time taken √√
However, by Laws of Motion --> 2as = v² - u² --> ( i )
Hence, by above formula :->
--> Power = Mass * [ v² - u² ] / ( 2 * time )
= 2.05 * 10⁶ * [ 25² - 5² ] / ( 5 * 2 * 60 ) <--- [ We need values in MKS ]
= 2.05 * 10⁶ Watt √√
Hope it helps ^_^
Power= Rate of Work Done = Mass * Acceleration * Distance covered / time taken √√
However, by Laws of Motion --> 2as = v² - u² --> ( i )
Hence, by above formula :->
--> Power = Mass * [ v² - u² ] / ( 2 * time )
= 2.05 * 10⁶ * [ 25² - 5² ] / ( 5 * 2 * 60 ) <--- [ We need values in MKS ]
= 2.05 * 10⁶ Watt √√
Hope it helps ^_^
Answered by
32
Answer:
this is the answer to the question
Attachments:
Similar questions