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A ball of 200 g mass is moved with 20 m/s, and decreases to 10 m/s in 5 seconds due to air friction. So, force of friction due to air is a] 1 N b] 4 N c] 0.4 N d] 10 N |
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Answer» Answer:(C) 0.4N is the CORRECT answer Explanation:MASS=200g or 0.2kg u=20m/s v=10m/s T=5s a=v-u÷t =10-20÷5 =-2m/s² FORCE=MASS× ACCELERATION =0.2×2 =0.4N HOPE IT HELPS PLZ MARK ME AS A BRAINLEIST THANKU✌✌ |
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