Solution.
"v=0;"
"u=15m\/s;"
"a=1m\/s^2;"
"S-?; t-?;"
"S=\\dfrac{u^2-v^2}{2a};"
"S=\\dfrac{(15m\/s)^2-0}{2\\sdot1m\/s}=112.5m;"
"a=\\dfrac{u-v}{t} \\implies t=\\dfrac{u-v}{a};"
"t=\\dfrac{15m\/s-0}{1m\/s^2}=15s;"
Answer: "S=112.5m;"
"t=15s."
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