Little%20Book,%20Motion%20Math%20

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Little Book, Motion Math Work Sheet
AnswersBe sure to show YOUR work and the
formulas for credit!
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Motion Mathpages 8 9 in your little book

• Solve the following problems. Show all your work
  and attach additional paper if necessary. Write
  the formulas in the provided boxes to help.
  Remember to include the correct units.

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Speed Average Speed

• Speed Formula
• S D/T

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Nascar driver, Jeff Gordon, has a car that is one
of the fastest on the circuit. If it travels
600 miles in 4 hours, what is his cruising
speed? D/T S

• 600 MILES/4 HOURS 150 mph

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2. The fastest car on Earth, a German-made Thrust
SSC, would win every Nascar race in America. If
it takes 0.5 hours (30 minutes) to travel 380
miles, what is its speed? D/T S

• 380M / 30 min 12.67 miles/min

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The fastest train on Earth, the TGV from France,
can travel at faster speeds than trains in the
United States. During a speed test, the train
traveled 800 miles in 2.5 hours. What is its
speed? D/T S

• 800 m / 2.5 hours 320 mph

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4. How fast was a plane flying if it traveled 400
km in 30 min?
D/T S

• 400 km / 30 min 13.33 km/min

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5. A Hummer travels at a speed of 50 mi/hr for 4
hrs. How far did the car travel? S x T D

• 50 mph D / 4 200 miles
• 50 x 4 200 miles

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6. The fastest plane ever made, the Lockhead
SR71, was able to travel 2200 miles per hour.
Based on this speed, how far could it travel in
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2 hoursS x T D

• 2200 D/2 4400 MILES

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3 hours? S/T D

• 2200 D/3 6600 MILES

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5 hours? S x T D

• 2200 D/5 11,000 MILES
• 2200 x 5 11,000

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Velocity

• Velocity Formula
• V D/T

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7. A car traveled 1025 km from El Paso to Dallas
in 13.5 hr. What was its average velocity?
V D/T

• 1025 km / 13.5 hours 75.93 km/hr toward
  Dallas

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8. A student walks 10 blocks to a computer store
(Assume all the blocks are equal length.)a. How
long will it take him to reach the computer store
if he walks 3 blocks in 2 min? D/V
T

• 3 blocks / 2min 1.5 blocks per minute
  1.5 10 blocks/time 6.67 minutes

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b. What is his average velocity? V D/T

• 1.5 blocks / minute toward the computer store

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9. A cheetah runs at a velocity of 88 ft/sec for
40 seconds. How far does this cheetah run?
D T x V

• 88 ft/sec D/40 D3520 feet

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Acceleration

• Acceleration Formula
• A Vf - Vi T

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10. Twenty seconds after a soccer ball is kicked
(initial velocity 0), its velocity is 32 m/s.
What is its acceleration?
A Vf - Vi T

• A 32 - 0 m/s
• 20
• 32/20 16/10 1.6 m/s2

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11. A driver starts his parked car and within 1
minute reaches a velocity of 30 mph as he travels
east. What is his acceleration?
A Vf - Vi T

• A 30-0 mph 60 min/ 1 hr 1800 m/h2
• 1 min

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Random Find the missing variable
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12. V 40 mi/hr t 3 hrs. D?

• V D / T or D V x T
• 40 D/3 or D 40 x 3
• 120 MILES D

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13. A 9.8 m/s2 t 3 hr V?

• A V / T or V A x T
• 9.8 V/3
• V 29.4 M/S

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t 5 hr d 100 m. V?

• V D/T
• 100 m / 5 hr
• 20 meters / hr

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15. V 100 mi/hr d 400 mi t ?

• V D/T or D/Vt
• 100 m / hr
• 400 miles / t
• t 4 hrs

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Extra Little Book

• Motion Graphsanswers

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ANSWERGraph A
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ANSWER Graph D
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Graph A matches 2 The car is traveling at a
constant speed Graph B matches 3The speed of
the car is decreasing Graph C matches 1The car
is stopped. (no additional distance is
occurring) Graph D matches 4The car is coming
back
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Pg 10

• Graph E matches7accelerating
• Graph F matches8slowing down
• Graph G matches6constant speed
• Graph H matches5 car is stopped

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Putting it All Together

1. Which runner won the race?
2. Which runner stopped for a rest?
3. How long did he stop for?
4. How long did it take Bob to complete the race?
5. Calculate Alberts avg. speed

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Putting it All Together

• 1. Which runner won the race?-Albert won the
  race. He reached 100 meters first.
• 2. Which runner stopped for a rest?
• -Charlie stopped for a rest at 50m.
• 3. How long did he stop for?
• -Charlie stopped for 5 seconds. (13-8)
• 4. How long did Bob take to finish?-14 seconds
• 5. Calculate Alberts average speedAvg speed
  Total Distance Total
  time100m 8.33m/s12s

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Page 12

• Segment O-A accelerating
• Segment A-B constant speed
• Segment B-C decelerating
• Segment C-D at rest
• Segment D-E accelerating
• Segment E-F constant speed

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Speed/Distance/TimeGraphing Worksheet check
your answers.Show the formula,show your work
for credit!
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