Question

A train is moving with 18km per hr after 5s its speed increase to 54km per hr. What will be the speed of train in next 5s

Answer 1

54-18/5=36/5=a
v-18/10=36/5
v-18=72
v=90km/hr

Answer 2

Answer:

here speed increased in 5 sec = 54-18=36km/hr

then speed in next 5 sec =54+36=90km/hr (ANSWER)

Explanation:

IT SAYS SPEED INCREASES EVERY HOUR BY 54-18=36KM/HR THEN SPEED IN NEXT 5 SECONDS WILL BE 36 + CURRENT SPEED