Two passenger trains, A and B, 450km apart,
start to move towards each other at the
same time and meet after 2 hours. If train B,
travels (8/7) as fast as train A, find the speed
of each train.
An earth-based observer sees rocket A
moving at 0.70c directly towards rocket
B,which is moving towards A at 0.80c.
How fast does rocket A sees rocket B
approaching?
Two particles P and Q move towards each
other along a straight line MN, 51 meters
long. P starts fromM with velocity 5 ms^(−1)
and constant acceleration of 1 ms^(−2) . Q starts
from N at the same time with velocity 6 ms^(−1)
and at a constant acceleration of 3 ms^(−2) .
Find the time when the:
(a) particles are 30 metres apart;
(b) particles meet;
(c) velocity of P is (3/4) os the velocity of Q.