Figure 6.17 shows the momentum vectors for particles 1 and 2, before and after a collision. Show that momentum is conserved in this collision. Draw the vector triangle that shows that momentum is conserved in the collision. Show the value of each angle in the triangle.

Figure shows the momentum vectors for two identical particles, $1$ and $2$ before and after a collision. Particle $2$ was at rest before the collision. Show that momentum is conserved in this collision.

A snooker ball collides with a second identical ball as shown in Figure

Determine the components of the velocity of the first ball in the $x \& y$ directions.

A snooker ball collides with a second identical ball as shown in Figure

 Hence, determine the components of the velocity of the second ball in the $x \&\hspace{0.17em}y$ directions.

A snooker ball collides with a second identical ball as shown in Figure

Hence, determine the velocity (magnitude and direction) of the second ball.

A car of mass $1000 \mathrm{kg}$ is travelling at a velocity of $+10 \mathrm{m}{\mathrm{s}}^{-1}$. It accelerates for $15 \mathrm{s}$, reaching a velocity of $+24 \mathrm{m}{\mathrm{s}}^{-1}$. Calculate:

(a) The change in the momentum of the car in the $15 \mathrm{s}$ period

A car of mass $1000 \mathrm{kg}$ is travelling at a velocity of $+10 \mathrm{m}{\mathrm{s}}^{-1}$. It accelerates for $15 \mathrm{s}$, reaching a velocity of $+24 \mathrm{m}{\mathrm{s}}^{-1}$ 

Calculate the average resultant force acting on the car as it accelerates.

A ball is kicked by a footballer. The average force on the ball is $240 \mathrm{N}$ and the impact lasts for a time interval of $0.25 \mathrm{s}$

 Calculate the change in the ball's momentum.

A ball is kicked by a footballer. The average force on the ball is $240 \mathrm{N}$ and the impact lasts for a time interval of $0.25 \mathrm{s}$

(b) State the direction of the change in momentum.