A human heart found to beat seventy five times in a minute. Calculate the beat frequency?

asked Mar 28, 2023 130k views

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${ \green{ \tt{f = (number \: of \: beats)/(time \: taken)}}}$

${ \green{ \tt{number \: of \: beats = 75}}}$

${ \green{ \tt{time \: taken =1 \: min \: = 60 \: sec}}}$

${ \red{ \sf{f = \frac{ \cancel{75^(3)}}{ \cancel{ 60_(4) }}}}}$

${ \blue{ \boxed{ \purple{ \sf{f = (3)/(4) = 1.2 {s}^( - 1)}}}}}$

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${ \blue{ \sf{T = (1)/(f)}}}$

${ \blue{ \sf{T = \frac{1}{ \purple{ \sf{1.2}}}}}}$

${ \boxed{ \red{ \sf{T = 0.8 \: S}}}}$

Mark Watney answered Apr 4, 2023

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