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Distance-Time graph 12 10 8 Distance (m) 6 4 N 0 0 1 2 3 4 5 6 7 8 9 10 Time (s) The slope of this distance-time graph is A 0.4m/s B 0.8 m/s C 1.2 m/s D 1.6 m/sA snail moves along a ruler. It takes 20 s to move from Q to R. 0 2 cm What is its average speed from Q to R? Distance-Time graph Distance (m) Time (s) The quantity represented by the slope of the graph is The graph represents the movement of a body. 10 8 speed m/s 4 How tor has the body moved otter 5 s ? A motorcyclist drives along a straight road. The diagram gives information about the first 20 s of his ride. start after 20 s N V = 0 m/s V = 19 m/s W - E S The acceleration of the motorcyclist isA mason lifts 20 bricks, each of weight 6 N. What other information is needed to calculate the useful work done in lifting the bricks?Forces are used to move objects P, Q, R and S through the distances shown. 5 N P 10N Q 5 N R 10N S Which statement correctly describes the work done by each force? A Most work is done in moving R. B Most work is done in moving S. C The same amount of work is done in moving P and Q. D The same amount of work is done in moving P and R.The object in the diagram is acted upon by the two forces shown. What is the effect of these forces? 3 N 2N object The object moves to the left with constant speed. W D The object moves to the left with constant acceleration. C The object moves to the right with constant speed. The object moves to the right with constant acceleration.A motorcyclist drives along a straight road from A to B in 12 s. A B 840 m The average speed of the motorcyclist isA position - time graph for the motion of a person walking is shown below. 100 80 60 position (m), West 40 20 0 0 5 10 15 20 25 time (s) From the slope of the graph, the velocity(v ) of the pedestrian is