Bus X travels a distance of 360 km in 5 hours whereas bus Y travels a distance of 476 km - Science - Motion

Question

Bus X travels a distance of 360 km in 5 hours whereas bus Y travels
a distance of 476 km in 7 hours Which
bus travels faster?
(a) Write the formula for acceleration Give the meaning of each
symbol which occurs in it
(b) A train starting from Railway Station attains a speed of 21 m/s
in one minute Find its acceleration

Vipra Mishra · Accepted Answer

Solution
For bus X
  Speed =Distance   Time  ​   Speed=  3605  =72 km/h   For bus Y,  Speed =Distance   Time  ​   Speed=  4767   =68 km/h  Speed of bus X is more than that of bus Y
  Hence, bus X travels faster
a)Acceleration is rate of change of velcoity
Soa =∆vt Where a is acceleration∆v is change in velocityt is timeb)Train starts from railway station hence initial velocity u = 0v = 21 m/st = 1 min = 60 sSoa =v-ut = 2160 =0
35 m/s2