Atrain leaves a station and travels north at 50 kmh four hours later a second train leaves on a paralel track and travels north at 90 km hr how far from the station will they meet?
to fa c e yourself with the problem complete the following chart
distance
rate
time
equation
slow train
fast train

Step-by-step explanation:

50 X 4= 200

90 X 5=450

50 X 5=250

200 + 250 = 450

Therefore it takes 5 hours for train B which is the train moving at 90 km per hr  to catch up to train A.

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

12.5 feet

step-by-step explanation: