Question

the two cities.
4. Arrange the following suu
10 m s-1, 1 km min-1, 18 km h-
Ans. 18 km h-!. 10 m s -1, 1 km min!
5. A train takes 3 h to travel from Agra to Delhi with a
uniform speed of 65 km h-!. Find the distance between
Ans. 195 km
6. A car travels first 30 km with a uniform speed of
60 km h-1 and then next 30 km with a uniform speed
of 40 km h-!. Calculate : (i) the total time of journey,
(ii) the average speed of the car.
Ans. (i) 75 min, (ii) 48 kmh-​

Answer 1

Answer:

answer 4 - 18 km /hr =18 * 5/18 m/sec =5m/sec,10m/sec,

1km/min = 1 * 1000/60 m/sec =16.7m/sec

thus, 5m/sec,10m/sec,16.7m/sec

answer 5

distance = speed * time

= 65 * 3

=195 km