The points $X\,$ and $Y\,$ lie 100 m apart on horizontal ground. At time $t = 0$ two balls, $M\,$ and $N$ , are projected from $X\,$ and $Y\,$ respectively. Ball $M\,$ is projected with speed 30 ms^-1 at an angle of $45^\circ\,$ to the horizontal. Ball $N\,$ is projected with speed $\text{ ms}^{-1}$ at an angle of $\phi\,$ to the horizontal. At time $t = 2.5$ , the balls collide in mid-air. Both balls are assumed to be particles in free flight.

Find the velocity of $M\,$ the instant before it collides with $N$ .

Find the size of angle $ϕ\phi$ .

Find the value of $U$ .

State one limitation of the model that could affect the accuracy of your answers.

Find the velocity of $M\,$ the instant before it collides with $N$ .

Find the size of angle $ϕ\phi$ .

Find the value of $U$ .

State one limitation of the model that could affect the accuracy of your answers.

3.2 Q: Kinematics

Question 16

Markscheme

3.2 Q: Kinematics

Question 16

Markscheme

3.2 Q: Kinematics

Question 16

3.2 Q: Kinematics Questions

3.2 Q: Kinematics

Question 16

3.2 Q: Kinematics Questions