The circumference of the rectangle, which is the distance travelled in one round = 2(50 m) + 2(20 m) = 100 meters + 40 meters = 140 meters.
Runs around rectangle twice = 2(140 m) = 280 m
Total Distance = 280 meter.
Total Displacement = 0 (because the runner came back to initial point)
Average speed = the distance / time taken
= 280 m / 100 s
= 2.8 m/s
Average velocity = displacement / time taken
= 0 / 100 s
= 0.
Question : At what time will a 100 metres long train running at a speed of 50 km/h cross a pillar?
Option 1: 7 seconds
Option 2: 72 seconds
Option 3: 7.2 seconds
Option 4: 70 seconds
Question : A runner runs a 750-metre race in 54 seconds. Find the runner’s speed (in km/hr).
Option 1: 40
Option 2: 30
Option 3: 14
Option 4: 50
Question : A train having a length of 330 metres takes 11 seconds to cross a 550 metres long bridge. How much time will the train take to cross a 570 metres long bridge?
Option 1: $\frac{45}{4}$ seconds
Option 2: $\frac{47}{4}$ seconds
Option 3: $20$ seconds
Option 4: $16$ seconds
Question : Directions: Rahul walks 30 metres towards the south. Then turning to his right and starts walking straight till he completes another 30 metres. Then again, turning to his left he walks for 20 metres. He then turns to his left and walks for 30 metres. How far is he from his initial position?
Option 1: 50 metres
Option 2: 30 metres
Option 3: 10 metres
Option 4: 60 metres
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