Question by Kendra S: Grade 10 Science Physics Questions…HELP PLEASE?
A cycilist is travelling with a speed of 12m/s when she applies the brakes. After slowing for 3.0 s, her speed has been reduced to 4.0 m/s. The distance she travels during this time is 24 m.
A) What is her acceleration?
B) If she continues braking, how much longer will it take her to stop?
C) If she conintues to travel with her new speed, how far will she travel during the next 3s?
please show all work for future reference please and thank you:)
Answer by Ron J
A accel = change in speed /time taken
B time = change in speed (3 to 0) / accel (from A)
C dist = speed (4m.s) x time (3s)
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