Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard XII
Physics
Question

If collision between the block and the incline is completely elastic, then the vertical (upward) component of the velocity of the block at point B, immediately after it strikes the second incline is
43029.PNG
  1. 0
  2. √30m/s
  3. √15m/s
  4. −√15m/s

A
0
B
√15m/s
C
√30m/s
D
−√15m/s
Open in App
Solution
Verified by Toppr

After collision, vertical velocity will be
vsin(300)cos(300)−vcos(300)cos(600)=0.

506730_32289_ans.PNG

Was this answer helpful?
1
Similar Questions
Q1
If collision between the block and the incline is completely elastic, then the vertical (upward) component of the velocity of the block at point B, immediately after it strikes the second incline is
1010773_0b15cab5aa3b4b85b3ca14726426dcb0.png
View Solution
Q2
A small block of mass M moves on a frictionless surface of an inclined plane, as shown in the figure. The angle of the incline suddenly changes from 60∘ and 30∘ at the point B.
The block is initially at rest at A. If the collision between the block and the incline is completely elastic, then the vertical (upward) component of the velocity of the block at point B, immediately after it strikes the second incline is
941566_7af41ed0c914473eaf9bc6eb9d5a9deb.png
View Solution
Q3
The speed of the block at point B immediately after it strikes the second incline is
43029.PNG
View Solution
Q4
A small block of mass M moves on a frictionless surface of an inclined plane, as shown in the figure. The angle of the incline suddenly changes from 60∘ and 30∘ at point B.
The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic. The speed of the block at point B immediately after it strikes the second incline is
941560_cf83a79c580c4e8e9a927e2a7d0353cb.png
View Solution
Q5

At a given instant, block A is moving with velocity of 5 m/s upwards. What is the velocity of block B at that time?


View Solution