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Answer» 1. average speed is the total distance upon total time and instantaneous speed means the speed of an object at a PARTICULAR time 2. it is 0 m/s3.(a) total distance =100+50=150m and total time = 10 + 30=40s average speed is 150/40=3.75m/s (b) displacement = 100-50=50m total time = 40s average VELOCITY = 50/40=1.25m/s4. 18 km/h= 5 m/s 36km/h= 10 m/s(a) [10-5]/5=1 m/s^2(b) s=ut + 1/2at^2so, s=5×5 + 1/2.1.(5)^2 =25+12.5 =37.5mExplanation:PLEASE mark as brainlist answer hope it is useful |
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