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Fast it is urgent answer by numbers it is extremely urgent |
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Answer» ONG>Answer: 1) 72 km/h = 72× 5/18 m/s = 20 m/s 2) 60 m/s = 60× 18/5 = 216 m/s 3) 10 km/h = 10 ×5/18 m/s = 50/18 m/s time= distance/ speed. = 750 × 18/50 s = 270 s = 4 min 30 second 4) distance= 500 m time= 100 SEC speed= 500/100 m/s = 5 m/s = 5× 18/5 km/h = 18 Km/H 5) speed= 20 km/h= 20×5/18 m/s = 100/18 m/s time= 50 min = 300 sec distance= 100×300/18 m = 1000/6 m = 10/6 km. hope this answer is clear to you
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