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Standard XII

Physics

Momentum

A force F a...

Question

A force $F$ acts horizontally on a block of mass $m$ that is initially at rest on a smooth horizontal floor. The force acts for a time $t$ and moves the block a displacement $d$ .
Find out the change in momentum of the block ?

\frac{F}{t}

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\frac{m}{t}

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F d

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F t

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m t

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Solution

The correct option is E $F t$
Net force acting on the block = $F$
Time for which the force acts = $t$
Using momentum-force relation, we get $Δ P = F \times t$

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A force F acts horizontally on a block of mass m that is initially at rest on a smooth horizontal floor. The force acts for a time t and moves the block a displacement d.Find out the change in momentum of the block ?

The correct option is E FtNet force acting on the block = FTime for which the force acts =tUsing momentum-force relation, we get ΔP=F×t

A force $F$ acts horizontally on a block of mass $m$ that is initially at rest on a smooth horizontal floor. The force acts for a time $t$ and moves the block a displacement $d$ .
Find out the change in momentum of the block ?

The correct option is E $F t$
Net force acting on the block = $F$
Time for which the force acts = $t$
Using momentum-force relation, we get $Δ P = F \times t$