Acar goes 4 m/s for 10 seconds then speeds up to 12 m/s in
two seconds. the car continues at this speed for a minute. the car then
accelerates at -3 m/s" for 10 seconds
how far did the car go in each time interval?
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Ответ:
Explanation:
For 10 seconds, v= d/t
4= d/10
d = 4×10= 40m
For 2 seconds,
V=d/t
12 =d/2
d =12 × 2 =24m
For the last 10 seconds,
S = ut +1/2 at^2
S = 0×10 + 1/2 × - 3 ×10^2
S=-150m
Ответ: