Mathematics (AS & A Level) · May / June 2026 · Paper 42 · Question 7

A particle P moves in a straight line. The velocity v m s 1 - of P at time t s, where t 0 H , is given by ( ) ( ) , v k t t k 4 11 2 1 1 4 1 2 2 2 1 = + - + + where k1 and k2 are constants. When t = 1.25 the deceleration of P is 0.5 m s 2 - .

Read automatically from the paper; the printed page above is exact.