Question

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5
If the frequen
the frequency of human heart is 1.25 Hz, the
number of heart beats in 1 minute is
(a) 65 (b) 75 (c) 80 (d) 90
In a certain oscillatory system, the amplitude ol
motion is 5 m and the time period is 4 s. The time
taken by the particle for passing between points
les which are at distances of 4 m and 2 m from the
centre and on the same side of it will be
0.30 s (b) 0.32 s (c) 0.33 s (d) 0.35 s
-
A block of mass mis attached to one end of a massless
spring which is suspended vertically from a fixed​

Answer 1

Answer:

I understand you i will solve it and tell u later

Answer 2

The human heart beats approximately 72 times in a minute but by your your options and the frequency provided the answer will be 75