1)
Please insert C as the answer to the first question.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
2) Find the total acceleration of a particle moving on a circle of radius 0.70 m, if its angular speed is 37 rpm and its
tangential acceleration is 2.9 m/s
2
.
A) 10.9 m/s
2
at 45°
B) 0 m/s
2
C) 37.9 km/s
2
at 15°
D) 37.9 km/s
2
at 45°
E) 10.9 m/s
2
at 15°
3) A cat leaps to catch a bird. If the cat
ʹ
s jump was at 60.0° off the ground and its initial velocity was 9.58 m/s,
what is the highest point of its trajectory?
A) 7.04 m
B) 38.32 m
C) 3.52 m
D) 4.54 m
E) 2.29 m
4) A child is sitting on the outer edge of a merry

go

round that is 18 m in diameter. If the merry

go

round
makes 5.4 rev/min, what is the velocity of the child in m/s?
A) 0.8 m/s
B) 1.0 m/s
C) 10.2 m/s
D) 3.6 m/s
E) 5.1 m/s
5) A car is travelling north at 17.7 m/s. After 12 s its velocity is 14.1 m/s in the same direction. Find the magnitude
and direction of the car
ʹ
s average acceleration.
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 Spring '08
 Brar
 Physics, Acceleration, m/s, m/s2

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