Question

The distance required for a car to come to a stop will vary depending on how fast the car is moving. Suppose that a certain car traveling down the road at a speed of 20 m/s can come to a complete stop within a distance of 80 m. Assuming the road conditions remain the same, what would be the stopping distance required for the same car if it were moving at speeds of 10 m/s, 40 m/s, or 5 m/s ? 10 m/s 40 m/s 5 m/s Answer Bank 160 m 320 m 5m 5 m 20m 80 m 40 m

Answer 1

4220 msee 0To to given that S 80m By mewotons gnd equation 2as 2 O=(20)-xa x 8o a= 2.5 mlsec 8iven that oad Condli tiony are same 80 Jn alu Coses a 2.5 m Bed will Remain Constant 40 10 MReC Lehen 2 2. 2a S 2 0 = U 2 x 2.5S S20 m Ans when 040)-2x2.S xS SE A 320 wehen 2 0L5) 2x 2:S xS S= Sm h