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Can you visualize how a car reaches high...

Can you visualize how a car reaches high speeds and how a person scales high cliffs?

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To understand how a car reaches high speeds and how a person scales high cliffs, we can break down the concepts of kinetic energy and potential energy, as well as the sources of energy involved in each case. ### Step-by-Step Solution: 1. **Understanding Kinetic Energy in a Car:** - A car reaches high speeds by acquiring kinetic energy. Kinetic energy is the energy of motion, which depends on the mass of the car and the square of its velocity. - The formula for kinetic energy (KE) is given by: \[ ...
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Knowledge Check

  • High speed winds are accompanied by :

    A
    low air pressure
    B
    high air pressure
    C
    zero air pressure
    D
    moderate air pressure
  • A train goes past a person standing at the edge of a platform at high speed. Then the person will be

    A
    attracted towaeds the train
    B
    unaffected by the train
    C
    pushed away by the train
    D
    affected only if its speed is greater than critical velocity.
  • If a person is driving a car at a speed of 30 m/s, then in how much time person will cover a distance of 1620 km?

    A
    54 hr
    B
    15 hr
    C
    13 hr
    D
    12 hr
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