Question

: Pravin has applied a force of 100 N on an object, at an angle of 600 to the horizontal. The object gets displaced in the horizontal direction and 400 J work is done. What is the displacement of the object? (cos 60°=$\frac{1}{2}$

Answer 1

Answer:

Displacement = 8 m

Explanation:

Given :

∅ = 60°

F = 100 N

W = 400 J

s = ?

We know that,

W = F s Cos ∅

=> 400 = 100 * s * cos 60°

=> 4 = s * 1/2

=> s = 8 m

Therefore,

Displacement = 8 m

Hope it helps!

Answer 2

Answer:

The object will be displaced through 8 m.

Explanation:

GIVEN:

∅ = 60°

F = 100 N

W = 400 J , s = ?

W = F s Cos ∅

$400 = \: 100 \: \times \: s \: \times \frac{1}{2}$

$\frac{400}{100} \: = \: \frac{1}{2} \: \times \: s$

$4 \times 2 = s$

.

. . s = 8 m

$the \: object \: will \: be \: displaced \: through \: 8 \: m$