A particle P of mass 0.5 kg is moving in a straight line with speed 2.8 m s–1 when it receives

an impulse of magnitude 3 N s.

The angle between the direction of motion of P immediately before receiving the impulse and

the line of action of the impulse is α, where tan α = 4/3, as shown in Figure 2.

Find the speed of P immediately after receiving the impulse.

How would I go about solving this? I'm completely stuck

an impulse of magnitude 3 N s.

The angle between the direction of motion of P immediately before receiving the impulse and

the line of action of the impulse is α, where tan α = 4/3, as shown in Figure 2.

Find the speed of P immediately after receiving the impulse.

How would I go about solving this? I'm completely stuck

Use trig to calculate the new velocity in the parallel and perpendicular directions and then combine using pythagoras or draw a triangle with two sides repesenting the change in velocity (scaled impulse) and the original velocity, so the third gives the new velocity.

(edited 9 months ago)

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