in th Which dotted line best represents the path of horizontally from a bow at a speed of 20 meter per second, as shown in the following diagram. 24 meters per second from the top of a cliff. 77. A ball rolls down following diagram. the ball after leaving the ramp? 78. Above a flat horizontal plane, arrow A is shos A second arrow B is dropped from the same height and at the same instant as A is fired. B. Horizontal, plane Compare the amount of time A takes to strike the plane to the amount of time B takes to strike the plane. [Neglect friction.] 79. A rock is thrown horizontally from the top of a cliff at 12 meters per second. Calculate the tine required for the rock to fall 45 meters vertically- 0. A ball is thrown horizontally at a speed of If the ball hits the ground 4.0 seconds latel, approximately how high is the cliff? (1) 6.0 m (2) 39 m (3) 78 m (4) 96 m

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.