2.1. Equations of motion
A subsection of Physics, 9702, through 2. Kinematics
Listing 10 of 285 questions
Complete to indicate whether each of the quantities is a vector or a scalar. quantity vector or scalar acceleration speed power A ball is projected with a horizontal velocity of 1.1 m s–1 from point A at the edge of a table, as shown in . table ball 1.1 m s–1 path of ball horizontal ground B A 0.43 m The ball lands on horizontal ground at point B which is a distance of 0.43 m from the base of the table. Air resistance is negligible. Calculate the time taken for the ball to fall from A to B. time = s Use your answer in to determine the height of the table. height = m The ball leaves the table at time t = 0. For the motion of the ball between A and B, sketch graphs on to show the variation with time t of 1. the acceleration a of the ball, 2. the vertical component sv of the displacement of the ball from A. Numerical values are not required. t a t sv A ball of greater mass is projected from the table with the same velocity as the ball in . Air resistance is still negligible. State and explain the effect, if any, of the increased mass on the time taken for the ball to fall to the ground.
9702_m18_qp_22
THEORY
2018
Paper 2, Variant 2
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Complete Table 1.1 by stating whether each of the quantities is a vector or a scalar. Table 1.1 quantity vector or scalar acceleration power work The variation with time t of the velocity v of an object is shown in . 0.25 0.50 0.75 1.00 1.25 1.50 2.0 4.0 6.0 8.0 10.0 12.0 t / s v / m s–1 Determine the acceleration of the object from time t = 0 to time t = 4.0 s. acceleration = m s−2 Determine the distance moved by the object from time t = 0 to time t = 4.0 s. distance = m Define force. The motion represented in is caused by a resultant force F acting on the object. On , sketch the variation of F with time t from t = 0 to t = 12.0 s. Numerical values of F are not required. F 2.0 4.0 6.0 8.0 10.0 12.0 t / s 2.0 4.0 6.0 8.0 10.0 12.0 t / s
9702_m21_qp_22
THEORY
2021
Paper 2, Variant 2
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Questions Discovered
285