A particle is accelerated uniformly from rest, so that after 10 seconds it has achieved a speed of
15 m s-1
. Find its acceleration and the distance it has covered?
Share
A particle is accelerated uniformly from rest, so that after 10 seconds it has achieved a speed of
15 m s-1
. Find its acceleration and the distance it has covered?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Explanation:
V=at
⇒8=a10
⇒a=0.8m/s
2
V
2
=U
2
+2as
⇒U=8
2
+2×a64
⇒a=
2×64
−64
=−0.5m/s
2
Distance travelled= Area of graph
⇒584=
2
1
×10×8+8×t
1
+
2
1
×16×8
⇒584=40+8t
1
+64
⇒8t
1
=480
⇒t
1
=60
Total time= 10+60+16=86s
solution