wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A ball of mass 250 g moving with a speed of hits a wall normally . it rebounds with the same speed . If the two were in contact for 103 s , the average force exerted by the wall on the ball is

A
4×103N
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2×103N
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
103N
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
102N
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 2×103N
Correct option is (B) As we know; F=dPdt=mdVdt2501000=1/4 kg=1/4(V(v))103Here, V=(4×106)mB=2V4×103=2×(4×106)4×103=2×103 N

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Second Law of Motion
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon