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Questions:
1. Starting from rest, a drag race car attains a speed of 120 km/hr in 6 seconds. Find the acceleration of this car.
Given Data: find the following
a. vi?=
b. vf?=
c. t?=
Show your solution using the formula.
D.
2. A deer was running slowly at 2 Ms when a jaguar suddenly attacked it. Out of fear, it increased it's speed to 10 Ms in 4 seconds. Calculate the acceleration of the deer.
Guide questions:
A. How slow was the deer running before it was attacked by a jaguar?
B. When the jaguar had attacked, how fast did the deer run?
C. How long did the deer exert it's effort to increase it's speed?
Show your solution:
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Answer:
Explanation:
vi= 0 km/hour = 0m/sec
vf= 120km/h = 33.33m/sec
t= 6 seconds
Vf= Vi + a t
33.33 = 0 + 6a
6a= 33.33
a= 50.50m/sec square answer
_____________________________________
Vi = 2m/s
Vf= 10m/s
t= 4 sec
Vf= Vi + a t
10= 2 + 4a
4a= 8
a= 2m/sec square
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