# Use kinematics equation #3 only (please write the equation first, before substituting and solving)

Mechanics

Nov 14, 2013 (4 years and 6 months ago)

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HONORS PHYSICS 101
-

Kinematics 3

AMDG

Name ______________________________

Date ________

Use kinematics equation #3 only

(
p
lease

write the equation first, before substituting
and solving)

1.

A
small airplane accelerates at 3.1 m/s
2
. If the takeoff velocity must be 39.5 m/s, and
the plane

starts from rest, what length runway is needed?

2.

A truck skids to a halt in 50 meters. If it was originally moving at 17 m/s, what was
its acceleration?

HONORS PHYSICS 101
-

Kinematics 3

AMDG

3.

A rocket reaches a velocity of 4 x 10
4

m/s after accelerating at 5.4 x 10
3

m
/s
2

for 1.3 x
10
5

meters. What was its original velocity?

4.

Two cars are traveling along a straight line in the same direction, the lead car at 25
m/s and the following car at 30 m/s. At the moment the cars are 40 meters apart, the
hits the brakes causing his car to have an acceleration of

2.0 m/s
2
.

a) How far does the lead car travel during this time?

b) Assuming that the chasing car brakes at the
exact same moment