A train accelerates from 36km/h to 54km/h in 10sec find its acceleration and distance travelled by a train
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tanu8132003:
thank u so much
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➧ Initial speed u = 36 km/h
➾ 36 x 1000 / 3600 m/s
➾ 10 m/s
➧ Final speed v => 54 km/h
➾ 54 x 1000 /3600 m/s
➾ 15 m/s
➧ Time => 10 s
➧ Acceleration a = (v - u) / t
➾ (15 - 10) / 10
➾ 5/10 = 0.5 m/s2
➧ Speed = ut + ½ at2
➾ 10 x 10 + ½ x 0.5 x 10 x 10m
➾ 100 + 25
➾ 125 m...✔
_________
Thanks...✊
▬▬▬▬▬▬▬▬▬▬▬▬☟
➧ Initial speed u = 36 km/h
➾ 36 x 1000 / 3600 m/s
➾ 10 m/s
➧ Final speed v => 54 km/h
➾ 54 x 1000 /3600 m/s
➾ 15 m/s
➧ Time => 10 s
➧ Acceleration a = (v - u) / t
➾ (15 - 10) / 10
➾ 5/10 = 0.5 m/s2
➧ Speed = ut + ½ at2
➾ 10 x 10 + ½ x 0.5 x 10 x 10m
➾ 100 + 25
➾ 125 m...✔
_________
Thanks...✊
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