Question

A toy of mass 0.1 kg acquires a speed of
5.0 m/s when pushed forward. What is the
impulse given to the toy? ​

Answer 1

Answer:

0.5 kg m/ s is the required answer.

GIVEN:

• mass, m = 0.1 kg

• speed , v = 5 m/s

TO FIND:

Impulse , J

FORMULA:

• Impulse is equal to change in momentum.

• impulse = change in momentum

• momentum , p = mv

• impulse , J = mv

SOLUTION:

$J = mv \\ \\ = 0.1 \times 5 \\ \\ J</p><p> = 0.5 \:kgm/s$

ANSWER:

The impulse applied to the toy is 0.5 kg m/ s

IMPULSE:

• Impulse is a result of Newton's second law of motion.

• Impulse is defined as the product of force and the applied time.

• Impulse is the force resulting for a short period of time.

NEWTON'S SECOND LAW OF MOTION:

• According to Newton's second law , the force is defined as the product of mass and acceleration.

• Force is also equal to the change in momentum of the body.

RELATED FORMULAE:

• F = ma

• J = F × t

• F = dp / dt

Answer 2

0.5 kg m/ s is the required answer.

GIVEN:

mass, m = 0.1 kg

speed , v = 5 m/s

TO FIND:

Impulse , J

FORMULA:

Impulse is equal to change in momentum.

impulse = change in momentum

momentum , p = mv

impulse , J = mv

SOLUTION:

\begin{gathered}J = mv \\ \\ = 0.1 \times 5 \\ \\ J < /p > < p > = 0.5 \:kgm/s \end{gathered}J=mv=0.1×5J</p><p>=0.5kgm/s

ANSWER:

The impulse applied to the toy is 0.5 kg m/ s

IMPULSE:

Impulse is a result of Newton's second law of motion.

Impulse is defined as the product of force and the applied time.

Impulse is the force resulting for a short period of time.

NEWTON'S SECOND LAW OF MOTION:

According to Newton's second law , the force is defined as the product of mass and acceleration.

Force is also equal to the change in momentum of the body.