Question

Pulse 1 moves to the right along a spring, as shown in Figure (a) below. Another pulse (pulse 2, not shown) moves in the opposite direction along the same spring. Figure (b) below shows the location ofpulse 1 (dashed line) and the shape of the spring (solid line) at an instant while the two pulses meet.

7. Pulse 1 moves to the right along a spring, as shown in Figure (a) below. Another pulse (pulse 2, not shown) moves in the opposite direction along the same spring. Figure (b) below shows the location of pulse 1 (dashed line) and the shape of the spring (solid line) at an instant while the two pulses meet. Spring Pulse I Pulse 1 Figure (b) Figure (a) On Figure (b), draw the shape and location of pulse 2 at the instant shown. Say why your answer makes sense to you in the space below.

Answer 1

This is based on principle of superposition

Spring -+--Pulse 1 S2 Figure (b)

The more pulse 1 moves in a certain direction by an equal amount pulse 2 will move in opposite direction along the shape of the spring.