Q)A block of mass 100 g is moved with a speed of 5 m/s at the highest point in a closed circular tube of radius 10 cm in a vertical plane. The cross- section of the tube is such that the block just fits in it. The block makes several oscillations inside the tube and finally stops at the lowest point. Find the work done by the tube on the block during the process.
varsha jayant karandikar , 15 Years ago
Grade 12
3 Answers
SOURAV CHAKRABARTY
Last Activity: 15 Years ago
.2 j
anandpal shekhawat
Last Activity: 15 Years ago
hi,
Ei = 1/2mv^2 + mg2r = 1.45J
Ef = 0
so, work done = 0-1.45 = -1.45J
Aditya Kumar
Last Activity: 6 Years ago
Apply wet we get
0.5m(0^2-5^2)=w by tube +w by gravity
=. +Mg×2r
And on solving
We get
W by tube =-1.45
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.