Physics
Grade-7
Easy

Question

What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 5 v

  1. 5KE
  2. 1 fifthKE
  3. 25 KE
  4. 1 over 25 space K E

hintHint:

25 KE

The correct answer is: 25 KE


    K E apostrophe space equals space 1 half space m v apostrophe squared
equals space 1 half m space left parenthesis 5 v right parenthesis squared space
equals space 25 space K E

    Related Questions to study

    Grade-7
    Physics

    What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes v/3

    What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes v/3

    PhysicsGrade-7
    Grade-7
    Physics

    What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 3 v

    What is the new kinetic energy of a body of mass m, moving at a velocity, v, when its velocity becomes 3 v

    PhysicsGrade-7
    Grade-7
    Physics

    Which of the bodies given below has more kinetic energy when mass is constant?
    A) 3 m/s
    B) 6 m/s

    Which of the bodies given below has more kinetic energy when mass is constant?
    A) 3 m/s
    B) 6 m/s

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    Velocity is ____ proportional to the kinetic energy.

    Velocity is ____ proportional to the kinetic energy.

    PhysicsGrade-7
    Grade-7
    Physics

    What can you say about the kinetic energy when both have the same mass?
    A) 2 m/s
    B) 4 over 2 m/s

    What can you say about the kinetic energy when both have the same mass?
    A) 2 m/s
    B) 4 over 2 m/s

    PhysicsGrade-7
    Grade-7
    Physics

    Which of the bodies given below has less kinetic energy when both have the same mass?
    A) 3 m/s
    B) 6 m/s

    Which of the bodies given below has less kinetic energy when both have the same mass?
    A) 3 m/s
    B) 6 m/s

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    Which of the bodies given below has more kinetic energy when both have the same mass?
    A) 2 m/s
    B) 3 m/s

    Which of the bodies given below has more kinetic energy when both have the same mass?
    A) 2 m/s
    B) 3 m/s

    PhysicsGrade-7
    Grade-7
    Physics

    Which of the bodies given below has less kinetic energy when both have the same mass?
    A) 1 m/s
    B) 1 half m/s

    Which of the bodies given below has less kinetic energy when both have the same mass?
    A) 1 m/s
    B) 1 half m/s

    PhysicsGrade-7
    Grade-7
    Physics

    Which of the bodies given below has more kinetic energy when both have the same mass?
    A) 2m/s

    B) 4m/s

    Which of the bodies given below has more kinetic energy when both have the same mass?
    A) 2m/s

    B) 4m/s

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    Which of the following statements is correct for the graph between kinetic energy and velocity of the body?

    Which of the following statements is correct for the graph between kinetic energy and velocity of the body?

    PhysicsGrade-7
    Grade-7
    Physics

    What kind of graph is the graph between kinetic energy and velocity of the body?

    What kind of graph is the graph between kinetic energy and velocity of the body?

    PhysicsGrade-7
    Grade-7
    Physics

    As velocity decreases, kinetic energy

    As velocity decreases, kinetic energy

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    As velocity increases, the kinetic energy

    As velocity increases, the kinetic energy

    PhysicsGrade-7
    Grade-7
    Physics

    Identify the correct relation.

    Identify the correct relation.

    PhysicsGrade-7
    Grade-7
    Physics

    All of the following are examples of things that produce light energy , except

    All of the following are examples of things that produce light energy , except

    PhysicsGrade-7
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.