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Velocity and Distance Questions

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1) A car is traveling at 48.55 MPH. How fast is that in m/s?

2) The average distance for a field goal in the NFL over the past 5 years is 25.19 yards. what is this distance in meters?

3) A car rolls off the edge of the Grand Canyon with a velocity of 20.99 m/s. How far in meters from the edge has it traveled in 1.88 seconds?

4) A bullet is shot from a gun at 3.69 feet horizontal from the ground. How long does it take in seconds to hit the ground?

5) A roof shingle is dropped from a height of 8.36 meters. It did 103.9 Joules of work. What was the mass of the shingle?

6) On Mars, the acceleration due to gravity is g = 3.7 meters per second squared. A watermelon weighs 6.6 kilograms on earth. What would it weigh on Mars?

7) How far in miles has a car gone in 0.01 hours if it is traveling at 27.28 m/s?

8) How many meters is 10.35 feet?

9) A car rolls off the edge of the Grand Canyon with a velocity of 15.02 m/s. How far in meters down into the canyon has it traveled in 0.6 seconds?

10) An object has 93.24 Joules of energy and is traveling at 11.49 m/s. What is the object's mass?

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Solution Summary

The solution assists with answering the multiple velocity and distance questions.

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Please see the attached file for answers and explanations.

A car is traveling at 48.55 MPH. How fast is that in m/s?
Answer: 21.70 m/s

Calculations: As 1MPH=0.44704 m/s, 48.55 MPH=48.55*0.44704=21.70 m/s

The average distance for a field goal in the NFL over the past 5 years is 25.19 yards. what is this distance in meters?
Answer: 23.03 meters

Calculations: As 1 yard =0.9144 m, 25.19 yards= 25.19*0.9144=23.03 (m)

A car rolls off the edge of the Grand Canyon with a velocity of 20.99 m/s. How far in meters from the edge has it ...

Solution provided by:
Changping Wang, MA
Education
  • BSc , Wuhan Univ. China
  • MA, Shandong Univ.
Recent Feedback
  • "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
  • "excellent work"
  • "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
  • "Thank you"
  • "Thank you very much for your valuable time and assistance!"
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