An engine lifts a body 500 kg weight up to a height of 20 m in 10 sec. Find:(1) the total work done by the engine.( ans : 10^5 joule)(2)the power of the engine in Kilowatt.(ans:10 kilowatt)
PrakritiAnand
Asked:
December 2022
The power of an engine is 20 kilowatt . What time will be taken in lifting 100 kg body to a height of 50 m ? (ans: 2.5 sec)
PrakritiAnand
Asked:
December 2022
The perimeter of a rhombus is 52 cm . If one diagonal is 10 cm , find using heron's formula the area of rhombus. (ans: 120 cm^2)
PrakritiAnand
Asked:
December 2022
The side of a rhombus is 15 cm. If its one diagonal is 18 cm . Find its area.
PrakritiAnand
Asked:
December 2022
The largest cylinder is cut off from a log of wood of square base 30 cm x 30 cm and height 70 cm. Find the volume of remaining wood.
What is a gravity at South Pole?