Question

-P
2. From diagram alongside calculate
(i) velocity of P and Q (ii) frequency
of P, when frequency of Q is 512 Hz.
Assume that both wave are travelling in
same medium.
(i) 204.8 ms for both (ii) 256 Hz.]
Displacement (cm)
do o 00
.1.2.3
.5
7 8 9 10 11 12
16
Distance (in metres)
Fig. 9.6​

Answer 1

Answer:

rolling friction is a force of friction which come into play when a body is rolled over another body