(C) The impulse $J$ is defined as the product of force $F$ and the time interval $\Delta t$ for which it acts: $J = F \times \Delta t$. Given: Force $

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$1.5 \times 10^{-3} \, N \cdot s$

(C) The impulse $J$ is defined as the product of force $F$ and the time interval $\Delta t$ for which it acts: $J = F \times \Delta t$. Given: Force $F = 50 \, dynes$. Since $1 \, N = 10^5 \, dynes$,we convert the force to $SI$ units: $F = 50 \times 10^{-5} \, N = 5 \times 10^{-4} \, N$. Time $\Delta t = 3 \, s$. Impulse $J = (5 \times 10^{-4} \, N) \times (3 \, s) = 15 \times 10^{-4} \, N \cdot s = 1.5 \times 10^{-3} \, N \cdot s$.

Class 11 Physics Newton's Laws of Motion and Friction Third Law of Motion and Momentum and Impulse

Medium

$A$ force of $50 \, dynes$ acts on a particle of mass $5 \, g$ for $3 \, seconds$. What is the impulse of the force?

A
$0.15 \times 10^{-3} \, N \cdot s$
B
$0.98 \times 10^{-3} \, N \cdot s$
C
$1.5 \times 10^{-3} \, N \cdot s$
D
$2.5 \times 10^{-3} \, N \cdot s$

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Chapter

Newton's Laws of Motion and Friction

Subtopic

Third Law of Motion and Momentum and Impulse

$A$ block of mass $2 \ kg$ moves freely along the $x$-axis. It is at rest at $t = 0$. The force $F(t)$ acting on the block varies with time $t$ as shown in the figure. What is the kinetic energy of the block after $4.5 \ s$ (in $J$)?

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Explain "Momentum gives more information than velocity alone".

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The time in which a force of $2 \, N$ produces a change of momentum of $0.4 \, kg \cdot m/s$ in a body is ......... $s$.

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$A$ cricket ball of mass $500\, g$ collides with a bat with speed $15\, m/s$ and returns with the same speed within $0.01\, s$. The force acted on the bat is ............ $N$.

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$A$ particle of mass $1\, kg$ is acted upon by a force $F$ which varies as shown in the figure. If the initial velocity of the particle is $10\, ms^{-1}$, the maximum velocity attained by the particle during the period is ........ $ms^{-1}$.

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$A$ force of $50 \, dynes$ acts on a particle of mass $5 \, g$ for $3 \, seconds$. What is the impulse of the force?

Similar Questions

$A$ block of mass $2 \ kg$ moves freely along the $x$-axis. It is at rest at $t = 0$. The force $F(t)$ acting on the block varies with time $t$ as shown in the figure. What is the kinetic energy of the block after $4.5 \ s$ (in $J$)?

Explain "Momentum gives more information than velocity alone".

The time in which a force of $2 \, N$ produces a change of momentum of $0.4 \, kg \cdot m/s$ in a body is ......... $s$.

$A$ cricket ball of mass $500\, g$ collides with a bat with speed $15\, m/s$ and returns with the same speed within $0.01\, s$. The force acted on the bat is ............ $N$.

$A$ particle of mass $1\, kg$ is acted upon by a force $F$ which varies as shown in the figure. If the initial velocity of the particle is $10\, ms^{-1}$, the maximum velocity attained by the particle during the period is ........ $ms^{-1}$.

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