Question

A car moving along in a straight highway from point p to point q to point r and to point s, then back to point Q and finally to the point R as shown in the figure below a) Find the distance travelled by car b) Find the displacement of the car​

Answer 1

Answer:

Total Distance = 32 km

Total Displacement = 8 km

Explanation:

Total Distance = (P to Q) + (Q to R) + (R to S) + (S to Q) + (Q to R)

= 3 + 5 + 7 + (7+5) + 5

= 32 km

Total Displacement = Final Position - Initial Position

= P to R = 8 km

Answer 2

Answer:

(a) 32 km

(b) 8 km

Explanation:

step(1) : distance travelled by car from point P to Q is 3 km.

step(2) : distance travelled by car from point Q to R is 5 km.

step(3) : distance travelled by car from point R to S is 7 km.

step(4) : distance travelled by car from point S to Q is 12 km.

step(5) : distance travelled by car from point Q to R is 5 km.

(a) The total distance travelled by car is step(1) + step(2) + step(3) + step(4) + step(5) = (3 + 5 + 7 + 12 + 5) km = 32 km.

(b) The displacement of the car is step(1) + step(2) + step(3) - step(4) + step(5) = (3 + 5 + 7 - 12 + 5) km = 8 km.

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