a train accelerates uniformly from 36km/hrto 72 km/hr in 10ten
seconds
it's acceleration is.
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Answer:
Given:
Initial velocity = 36 km/hour
Final Velocity = 72 km/hour
Time taken = 10 seconds
To find:
Distance travelled.
Conversion :
Convert unit of velocity from km/hour to
m/s.
1. 36 km/hour = 36 × 5/18 = 10 m/s
2. 72 km/hour = 72 × 5/18 = 20 m/s
Calculation:
Acceleration be denoted as "a"
a=v-u/t
=> 20-10/10
=>1ms^-2
now distance travelled:
s=ut+1/2at^2
=> s = (10*10)+(1/2*1*10^2)
=> s = 100+50
=> s= 150 meters
Additional information on velocity:
1. It is a vector quantity.
2. It has both directions and magnitude.
3. It is also called the rate of change of Displacement
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