Question #117233

John slides down a hill on a toboggan. He starts from rest and speeds up to 7.9 m/s in 8.0 s.

Find his acceleration in m/s2

.

a. a. 0.66 m/s2

[downhill]

b. b. 0.77 m/s2

[downhill]

c. c. 0.88 m/s2

[downhill]

d. d. 0.99 m/s2

[downhill]

Find his acceleration in m/s2

.

a. a. 0.66 m/s2

[downhill]

b. b. 0.77 m/s2

[downhill]

c. c. 0.88 m/s2

[downhill]

d. d. 0.99 m/s2

[downhill]

Expert's answer

"a=\\frac{v}{t}=\\frac{7.9}{8}=0.99\\frac{m}{s^2}"

** Answer: d. 0.99 m/s2**

**[downhill]**

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