Home
Class 11
PHYSICS
An object of mass 1 kg is falling from t...

An object of mass 1 kg is falling from the height h = 10 m. Calculate
Potential energy of the object when it is at h = 4 m
(Assume g = 10 `ms^(-2)`)

Text Solution

Verified by Experts

The potential energy of the object at h = 4 m is
`" "U=mgh=1 times 10 times 4 = 40J`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    NCERT TAMIL|Exercise EXERCISE - MULTIPLE CHOICE QUESTIONS|15 Videos

  • WORK, ENERGY AND POWER

    NCERT TAMIL|Exercise EXERCISE - IV. NUMERICAL PROBLEMS|5 Videos

  • WORK, ENERGY AND POWER

    NCERT TAMIL|Exercise EXERCISES (ADDITIONAL EXERCISES)|7 Videos

  • WAVES

    NCERT TAMIL|Exercise EVALUATION(IV. NUMERICAL PROBLEMS)|7 Videos

Similar Questions

Explore conceptually related problems

An object of mass 1 kg is falling from the height h = 10 m. Calculate Kinetic energy of the object when it is at h = 4 m (Assume g = 10 ms^(-2) )

An object of mass 1 kg is falling from the height h = 10 m. Calculate The total energy of an object at h = 10 m (Assume g = 10 ms^(-2) )

Knowledge Check

  • An object falls from a height h (hltltR) .the speed of the object when it reaches the ground is

    A
    `(1)/(2)"gt"^(2)`
    B
    `sqrt"gt"`
    C
    gh
    D
    `sqrt(2gh)`

  • Two objects of masses m, and my fall from the heights h, and h, respectively. The ratio magnitude of their momenta when they hit the ground is

    A
    `sqrt((h_(1))/(h_(2)))`
    B
    `sqrt((m_(1)h_(1))/(m_(1)h_(2)))`
    C
    `(m_(1))/(m_(2))sqrt((h_(1))/(h_(2)))`
    D
    `(m_(1))/(m_(2))`

    • Similar Questions

    Explore conceptually related problems

    An object of mass 1 kg is falling from the height h = 10 m. Calculate What will be the speed of the object when it hits the ground? (Assume g = 10 ms^(-2) )

    An object of mass 1 kg is falling from the heighth - 10 m. Calculate (a) The total energy of an object at h = 10 (b) Potential energy of the object when it is at h = 4 m (c) Kinetic energy of the object when it is at h = 4 m (d) What will be the speed of the object when it hits the ground? Assume g = 10 ms^(-2))

    Calculate the potential energy of the object of mass m at a height h.

    An object of mass 2 kg is taken to a height 5 m from the ground (g = 10 m s^(-2) ). Calculate the potential energy stored in the object.

    An object of mass 2 kg is taken to a height 5 m from the ground (g = 10ms^(-2)) . (a) Calculate the potential energy stored in the object (b) Where does this potential energy come from? (c) What external force must act to bring the mass to that height? (d) What is the net force that acts on the object while the object is taken to the height h ?

    A book of mass 1 kg is raised through a height .h.. If the potential energy increased by 49 J, find the height raised.

    Home
    Profile