Answer Happy

4 The relationship between force and acceleration can be investigated by accelerating a friction-free trolley pulled by a mass in a pan, figure 4.1. thread trolley pulley pan table h Fig. 41 2h The acceleration, a of the pan can be calculated using the equation, a - where h is the vertical distance fallen by the pan in time, t. (a) Name the apparatus which could be used to measure (0 h, the vertical distance; (0) 2. time. 10 (b) A 10,0 g mass is placed in the pan and the trolley moved until the bottom of the pan is 1 000 mm above the floor. (1) Describe what must be done to obtain a value fort, using the apparatus named in (a)(ii) [ 21 (ii) State ONE way of increasing the accuracy of measuring t time [1]