Physics
Grade-7
Easy

Question

Direction : Calculate the missing term.
m = 1500 g
v = 100 m/s
K.E. = ?

  1. 7500 J
  2. 7500000 J
  3. 750000 J
  4. 75000 J

hintHint:

7500 J

The correct answer is: 7500 J


    KE space equals space 1 half space mv squared
equals space 1 half space cross times space fraction numerator 1500 space cross times space 100 squared over denominator 1000 end fraction
equals space fraction numerator 1 over denominator up diagonal strike 2 end fraction space cross times space fraction numerator 15 over denominator up diagonal strike 10 end fraction space cross times space up diagonal strike 10000 with 500 on top end strike
equals space 7500 space straight J

    Related Questions to study

    Grade-7
    Physics

    Direction : Calculate the missing term.
    m = 25 Kg
    v = 10 m/s
    K.E. = ?

    Direction : Calculate the missing term.
    m = 25 Kg
    v = 10 m/s
    K.E. = ?

    PhysicsGrade-7
    Grade-7
    Physics

    Direction : Calculate the missing term.
    m = 10 kg
    K.E. = 250 J
    v = ?

    Direction : Calculate the missing term.
    m = 10 kg
    K.E. = 250 J
    v = ?

    PhysicsGrade-7
    Grade-7
    Physics

    Identify the odd one out.

    Identify the odd one out.

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    What is wrong with the given formula?
    KE space equals space 2 mv squared

    What is wrong with the given formula?
    KE space equals space 2 mv squared

    PhysicsGrade-7
    Grade-7
    Physics

    Direction : Is this an example of kinetic energy?
    A person ready to dive

    Direction : Is this an example of kinetic energy?
    A person ready to dive

    PhysicsGrade-7
    Grade-7
    Physics

    Direction : Is this an example of kinetic energy?
    Flying airplane

    Direction : Is this an example of kinetic energy?
    Flying airplane

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    DirectionIs this an example of kinetic energy?
    Throwing a ball

    DirectionIs this an example of kinetic energy?
    Throwing a ball

    PhysicsGrade-7
    Grade-7
    Physics

    DirectionIs this an example of kinetic energy?
    Stretched rubber band

    DirectionIs this an example of kinetic energy?
    Stretched rubber band

    PhysicsGrade-7
    Grade-7
    Physics

    Direction : Is this an example of kinetic energy?
    Motion of a meteor

    Direction : Is this an example of kinetic energy?
    Motion of a meteor

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    Kinetic energy and velocity are related as

    Kinetic energy and velocity are related as

    PhysicsGrade-7
    Grade-7
    Physics

    Kinetic energy and mass are related as

    Kinetic energy and mass are related as

    PhysicsGrade-7
    Grade-7
    Physics

    Identify the correct formula for calculating kinetic energy.

    Identify the correct formula for calculating kinetic energy.

    PhysicsGrade-7
    parallel
    Grade-7
    Physics

    The SI unit of kinetic energy is ______.

    The SI unit of kinetic energy is ______.

    PhysicsGrade-7
    Grade-7
    Physics

    Kinetic energy is defined as

    Kinetic energy is defined as

    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 5 v

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

    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.