Forces and their effects

Exercises and problems about forces and their effects on systems: movements and deformations.

  • (#4843)   Seleccionar

    Lengthen of a spring when a force is applied

    A spring has an elastic constant of 120 N/m. Calculate how much it will lengthen by if a force of 35 N is applied.

  • (#4842)   Seleccionar

    Classification of bodies: rigid, elastic or plastic.

    Classify the following objects into rigid, plastic or elastic bodies:

    a) The mechanism of a key of the computer keyboard.

    b) Sunglasses.

    c) A headband.

    d) A steel fork.

    e) The bristles of a toothbrush.

    f) Bread dough.

  • (#3600)   Seleccionar

    Speed of a car 0001

    A car is moving in a straight path at 3 600 meters during 90 seconds. Determine the speed of the car, expressed in km/h.

  • (#3583)   Seleccionar

    Acceleration of a car 0001

    A car is increasing its speed from 40 m/s to 70 m/s. What is its acceleration if the time needed was 3 seconds?

  • (#3567)   Seleccionar

    Distance covered by a car 0001

    If the speed of a car is 75 km/h. How long does it take the car to cover a distance of 75 km?