Question

A dog is 60 m away while moving at a constant velocity of 10 m/sec towards you. Where is the dog after 4 seconds from you?(A) 40 m (B) 20 m(C) 10 m (D) 60 m

Answer 1

b is the correct answer

Answer 2

After 4 seconds the dog is (B) 20 meters away from you

Explanation :

Distance of the dog from you = 60 m

speed of the dog = 10 m/s towards you

time for which the dog ran = 4 second

Hence distance traveled by the dog = speed x time

= 10 x 4

= 40 m

So net distance remained = 60 - 40 = 20 m

Hence after 4 seconds the dog is (B) 20 meters away from you