Question

Rahul wanted to buy groceries, he started his journey from his house and moved3km north and turned East and moved 4km. After buying the groceries he returned back home through the same path.
i) The distance covered from his house to shop is:a) 7 kmb) 5 kmc) 9 md) 4 km
(ii) The shortest distancebetween his house and the shop is:a) 3 kmb) 4 kmc) 5 kmd) 9 km
(iii) The shortest path covered by Rahul is the magnitude of _________.a) Displacementb) Distancec) Velocity d)Speed
(iv) After buying groceries he returnedback home through the same path. The total path covered by Rahulis ________.a) 9 km b) 14 kmc) 16 kmd) 8 m
(v) The total displacement covered by Rahul is:(a) 0(b) 1 km (c) 1 m(d) 3 km

Answer 1

Answer:

i) 7km

ii) 5km

iii) Displacement

iv) 14km

v) 0

Explanation:

i) 3km + 4km

  = 7km

ii) $s^{2}$ = $3^{2} + 4^{2}$

   $s^{2}$ = 9 + 16

   $s^{2}$ = 25

   s = $\sqrt{25}$

   s = 5

iii) Displacement

iv) 7km + 7km

   = 14km

v) 0km