A force $\overrightarrow {\rm{F}} = 5\hat i + 6\hat j + 4\hat k$ acting on a body, produces a displacement $\overrightarrow {\rm{S}} = 6\hat i - 5\hat k.$Work done by the force is
A force $\overrightarrow {\rm{F}} = 5\hat i + 6\hat j + 4\hat k$ acting on a body, produces a displacement $\overrightarrow {\rm{S}} = 6\hat i - 5\hat k.$Work done by the force is
$10$
$18$
$11$
$5 $
A force $\overrightarrow {\rm{F}} = 5\hat i + 6\hat j + 4\hat k$ acting on a body, produces a displacement $\overrightarrow {\rm{S}} = 6\hat i - 5\hat k.$Work done by the force is
$W = \bar F.\bar s = (5\hat i + 6\hat j + 4\hat k)(6\hat i - 5\hat k) = 30 - 20 = 10J$