A man speed $6.4 k J$ energy in displacing a body by $64 m$ in the direction in which he applies force, in $2.5 s$ . Calculate the power spent (in hp) by the man.

34.3 h p

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343 h p

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0.343 h p

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3.43 h p

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Solution

The correct option is C $3.43 h p$
$P o w e r = w o r k / t i m e$
Given energy or work is equal to 6.4 kJ that is also equal to 6400 J after conversion.
$P o w e r = 6400 / 2.5 = 2560 W$
$1 h p = 746 W a t t s$
Hence Power is equal to $2560 / 746 = 3.43 h p$ .

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Similar questions

Q. A man spends

6.4 K J

energy in displacing a body by

64 m

in the direction in which he applies force, in

2.5 s

Calculate:
(i) the force applied and
(ii) the power Spent (in HP) by the man

A man spends

6.4 k J

energy in displacing a body by

64 m

in the direction in which he applies force, in

2.5 s

Calculate the force applied.

6.4 kJ of energy causes a displacement of 64 m in a body in the direction of force in 2.5 seconds. Calculate the Power in horsepower (HP). (Take 1 HP = 746 W)

6.4 kJ of energy causes a displacement of 64 m in a body in the direction of force in 2.5 seconds. Calculate the Force applied

$50kJ$ of energy causes a displacement of $25m$ in a body in the direction of force in $2.5s$ . Find the power in a unit of horse power.

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A man speed 6.4kJ energy in displacing a body by 64m in the direction in which he applies force, in 2.5s. Calculate the power spent (in hp) by the man.

The correct option is C 3.43hpPower=work/timeGiven energy or work is equal to 6.4 kJ that is also equal to 6400 J after conversion.Power=6400/2.5=2560W1hp=746WattsHence Power is equal to 2560/746=3.43 hp.

A man speed $6.4 k J$ energy in displacing a body by $64 m$ in the direction in which he applies force, in $2.5 s$ . Calculate the power spent (in hp) by the man.

The correct option is C $3.43 h p$
$P o w e r = w o r k / t i m e$
Given energy or work is equal to 6.4 kJ that is also equal to 6400 J after conversion.
$P o w e r = 6400 / 2.5 = 2560 W$
$1 h p = 746 W a t t s$
Hence Power is equal to $2560 / 746 = 3.43 h p$ .