Physics, asked by lokasirivarshinisigi, 1 year ago

a lorry has a mass of 5kg initial at rest after 10s its velocity becomes 20m/s.find the power of engine

Answers

Answered by namratha27

work done= force*displacement
displacement=velocity*time
=20*10=200m
force=mass*acceleration
5*20/10=10
therefore work done=2000
power=work/time=2000/10=200watts

Answered by nnkishorelic

The answer is 100watt

Previous Question

Next Question

Similar questions

Math, 7 months ago

1. Which one of the following is a polynomial? (a) x²/2-2/x² (b) under root (2x)-1 (c) x²+(3x³/²)/under root x (d) x-1/x+1...

Science, 7 months ago

9 Cytoplasm is a A Homogeuas material) 3) Heterogenous material c. simple material d Dead material...

Math, 7 months ago

Write IN TABULAR Form (X.X is a letter in the word conference...

Math, 1 year ago

the length and the breadth of a rectangle park are in the ratio 8:5 . A path 1.5m wide , running all around the outside of the park has an area of 594m2 . find the dimensions of the park.

Geography, 1 year ago

Conduct online research regarding the different layers of the atmosphere. Write a short description of your findings. In your description, mention the different layers that exist and their properties of altitude, gravity, and air pressure.

Political Science, 1 year ago

According to 9th class political science book which country women do not have the right to vote in which country...

Physics, 1 year ago

A cell has an emf 1.5 v when connected across an external resistance of 2 ohm the terminal potential...

Physics, 1 year ago

A car tarvels was travelling from point a to b at a speed of 20km/hr.after 1and half hr a bus strats from a at a speed of 30km/hr towards b.the bus reaches 22 minute ahead of the car.find the distance between a and b...