Skip to content
Philoid
Browse Saved
Back to chapter
Physics
4. Work and Energy
Home · Class 9 · Physics · Ref. Book · 4. Work and Energy
Prev
Next
Q56 of 146 Page 147

What do you understand by the kinetic energy of a body?

The energy that is possessed by a body due to its motion is called its kinetic energy. Kinetic energy is directly proportional to the mass and square of the velocity of the moving body. It can be mathematically written as, K.E= 1/2mv2


More from this chapter

All 146 →
55

What are the various forms of energy?

55

Two bodies having equal masses are moving with uniform speeds of v and 2v respectively. Find the ratio of their kinetic energies.

56

A body is thrown vertically upwards. Its velocity goes on decreasing. What happens to its kinetic energy as its velocity becomes zero?

56

A horse and a dog are running with the same speed. If the weight of the horse is ten times that of the dog, what is the ratio of their kinetic energies?

Questions · 146
4. Work and Energy
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 45 46 47 48 49 50 51 52 52 53 53 54 54 55 55 55 56 56 56 57 57 57 58 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 31 32 32 33 33 34 34 35 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved