CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A body is moving with velocity 30 m/s towards east. After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is

A
7 m/s2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
7 m/s2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1 m/s2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
5 m/s2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 5 m/s2
Average acceleration is given by
<a>=Change in velocityTotal Time
Here, final velocity is 40^j and initial velocity is 30^i
So, change in velocity will be Δv=40^j30^i
or, |Δv|=402+(30)2=50 m/s
Therefore, <a>=|Δv|t=5010=5 m/sec2.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Simple Harmonic Oscillation
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon