CBSE Class 11-science Answered
Kunal’s heart beats 72 times in one minute. If the length of second hand of watch is 4.5 cm. Find the distance travelled by the tip of second’s hand of watch when Kunal’s heart beats 300 times.
Asked by Topperlearning User | 31 May, 2016, 08:49: AM
Expert Answer
Heart beats 72 times in 1 minute
Therefore it beats 300 times in .
.
Now angle swept by seconds hand 250 x 6= 1500 degrees
The distance travelled is given by
Answered by | 31 May, 2016, 10:49: AM
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