If a force given by a- -b- acts on an object is displaced by c- -d- the work done on the object is-

The correct option is A ac+bd The work done = force × displacement #160;So, W=(aî+bĵ).(cî+dĵ)=ac+bd ...

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Standard XII

Physics

COE in SHM

If a force gi...

Question

If a force given by $a^i + b^j$ acts on an object is displaced by $c^i + d^j$ , the work done on the object is:

a c + b d

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a b + c d

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\sqrt{a^{2} + b^{2}} \sqrt{c^{2} + d^{2}}

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a b c d \cdot^i \cdot^j

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\sqrt{a b c d} \cdot^i \cdot^j

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Solution

The correct option is A $a c + b d$
The work done $=$ force $\times$ displacement
So, $W = (a^i + b^j) . (c^i + d^j) = a c + b d$

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If a force given by a^i+b^j acts on an object is displaced by c^i+d^j, the work done on the object is:

The correct option is A ac+bdThe work done = force × displacement So, W=(a^i+b^j).(c^i+d^j)=ac+bd

If a force given by $a^i + b^j$ acts on an object is displaced by $c^i + d^j$ , the work done on the object is:

The correct option is A $a c + b d$
The work done $=$ force $\times$ displacement
So, $W = (a^i + b^j) . (c^i + d^j) = a c + b d$