(a) What is the pressure when a force of 200N acts on an area of 4m/ Show your working. (3) (b) A force of 300N produces a pressure of 20 N/m². On what are is it acting? Show your working. (3)

(c) In a hydraulic jack, the small piston (A) has an area of 0.1 m and the large piston (B) has an area of 20 m.

(i) If a mechanic pushes on A with a force of 200N, what will be the pressure? Show your working. (2)

(ii) What will be the pressure at piston B? (1) (iii) Calculate the upwards force generated at piston B. Show your working. (2)

(iv) What is the biggest mass of car the mechanic could lift by exerting this force? (1)

d.7.5cm is your answer

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.

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