Two particles, P and Q, move along a straight line.
The fixed point O lies on this line.
The displacement of P from O at time t seconds is s metres, where
s=1³-4t² + 5t fort > 1
The displacement of Q from O at time 1 seconds is x metres, where
x=1²-41+4 for 1>1
Find the range of values of where t > 1 for which both particles are moving in the
same direction along the straight line.