If the velocity of a train starting from rest becomes 72km/h in 10 minutes? a) what is the acceleration? b) calculate the distance travelled by train which this time interval
Answers
Answered by
0
Explanation:
If the velocity of a train starting from rest becomes 72km/h in 10 minutes? a) what is the acceleration? b) calculate the distance travelled by train which this time interval
Answered by
1
Given :
Velocity of the train from rest, V = 72 km/hr.
Times (t) = 10 min = 10/60 h = 1/6 h.
To find :
Acceleration = ?
Distance travelled bt the train = ?
Solution :
Acceleration, a = ?
a = v-u/t
a = 72-0/10
a = 72×10
a = 720 km/h².
Distance travelled = S = ?
S = ut+1/2at²
S = 0×1/10+12(720)(1/10)²
S = (1/2)×720×(1/100)
S = 360/100
S = 3.6 km.
•°• The acceleration is 720 km/hr .
•°• The distance travelled by the train within this travel time is 3.6 km.
Similar questions