Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
K.E = `1/2` mv²
60 = `1/2` (30) (v)²
or v² = 4 m/s
or v= 2 m/s
APPEARS IN
संबंधित प्रश्न
State the energy transformation on the following:
Electricity is obtained from solar energy.
Choose one or more correct alternatives.
Joule is the unit of ______.
- force
- work
- power
- energy
Why does a spanner have a long handle?
How much energy is gained by a box of mass 20 kg when a man, runs carrying the box with a speed of 3 m/s-1 to catch the bus?
A man climbs a slope and another walks same distance on level road. Which of the two expends more energy and why?
The weights of two bodies are 2.0 N and 2.0 kgf respectively what is the mass of each body?
A bucketful of water is to be drawn from a well ______ will be done when a ______ is applied to do this because there will be a ______ of water.
(displacement, work, force)
