How is work done by a force measured when the force:
1. is in the direction of displacement
2. is at angle to direction of displacement

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Solution

Dear student,
$C a s e I : (F o r c e i s i n t h e d i r e c t i o n o f d i s p l a c e m e n t) W o r k d o n e, W = F S \cos θ H e r e, F i s f o r c e, S i s d i s p l a c e m e n t, a n d θ i s t h e a n g l e b e t w e e n f o r c e a n d d i s p l a c e m e n t A s F o r c e i s i n t h e d i r e c t i o n o f d i s p l a c e m e n t, θ = 0^{o} S o, W = F S \cos 0^{o} = F S C a s e I I : (F o r c e i s a t a n g l e t o t h e d i r e c t i o n o f d i s p l a c e m e n t) W o r k d o n e, W = F S \cos θ H e r e, F i s f o r c e, S i s d i s p l a c e m e n t, a n d θ i s t h e a n g l e b e t w e e n f o r c e a n d d i s p l a c e m e n t$
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How is work done by a force measured when the force: 1. is in the direction of displacement 2. is at angle to direction of displacement

How is work done by a force measured when the force:
1. is in the direction of displacement
2. is at angle to direction of displacement