A man leaves his house at 6.30 a.m. for a morning walk and returns back at 7.30 a.m. after covering 4 km. Displacement covered by him is …………….
A. 2 km
B. zero
C. 8 km
D. 4 km
Answer:B
A man leaves his house at 6.30 a.m. for a morning walk and returns back at 7.30 a.m. after covering 4 km. Displacement covered by him is …………….
A. 2 km B. zero C. 8 km D. 4 km