ME Medgar Evers College The City University of New York PALL 2017 Department ef
ID: 1882364 • Letter: M
Question
ME Medgar Evers College The City University of New York PALL 2017 Department ef Physics and Compater Sciences PHY 114-040 asic Physics Instructor: Dr. Ifeanyi E. Ekejiuba EXAM The folowing formulne 09/27 17 may be useful: I. Average velocity: OR In terms of initial and final quantitie 2. Average acceleration: a-Yo 4. Equations of uniformly accelerated motion: a- a 3. Take the acceleration due to gravity, 8 10 m/ Instructions: Show your work in the spaces provided! 50 %, of the points I Circle the Letter that corresponds to the correct option! 50 % of the points I l. When you walk at an average speed of 2 m's in 5 s you'll cover a distance of D. 2 m 10 m B. 15m A. 20 m Es 2. If a car increases its velocity from zero to 30 m/s in 10 scconds, its acceleration is D. 600 m/ c. 60 m/s , 3 m/s2 B. 6 m/s TOms = 3m/s 3. A cart changes its speed from rest to 100 m/s in 10s. During this interval its acceleration is D. none of the above C. 1 m/s? B. A.) 10 m/s at fter accelerating from rest at 2 m/s is m/s D 2m 76 fter4ccelerating from restC.2 mi3iss 4. A car's velocity1 :Explanation / Answer
1)
Distance d = 2 x 5 = 10 m
2)
Acceleration a = (30 - 0)/10 = 3 m/s^2
3)
Acceleration a = 100 /10 = 10 m/s^2
4)
Acceleration a = (v - u)/t
2 = (v - 0)/1
V = 2 m/s
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