Physics, 20.09.2020 06:01, mbonham481
1.Plug variables expressed in SI units in the kinematic equation given in article: a = -v0^2/(2sg). What value of g you get as expressed in g's where g = 9.8 m/s^2
A. the same as in English units
B. smaller
C. larger
D. this calculation cannot be performed in SI units
2. If the initial velocity of player is doubled then the absolute acceleration would
A. decrease 2x
B. stays the same
C. increase 2x
D. increase 4x
3. If stopping distance is decreased 2x then the acceleration would A. decrease 2x
B. stay the same
C. increase 2x
D. increase 4x
E. Other:
4. Hockey player having initial velocity 20 m/s and helmet having padding 5 cm hits head on his twin brother. The acceleration of his brain is most closely equal to
A. 0.4g
B. 4g
C. 40g
D. 400g
Answers: 2
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1.Plug variables expressed in SI units in the kinematic equation given in article: a = -v0^2/(2sg)....
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