Best Kinematics Questions and Answers (Q&A) - ProProfs Discuss

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What are their speeds when they HIT the street?

L. Brett, Sales Manager
Answered: Nov 27, 2018

Correct answer is the 2 objects are traveling at the same speed.
Neglecting air resistance, an object thrown up has the same speed as the second object thrown down from the top of a...Read More

2 Answers

1938 views

What is the average speed of a car that travels 30 meters in 10 seconds, then another 50 meters in 30 Â seconds?

John Adney
Answered: Feb 05, 2017

V_avg = (x2 - x1) / (t2 - t1)
x2 = 30m + 50m = 80m
x1 = 0
t2 = 30s + 10s = 40s
v_avg = (80m - 0m) / (40s - 0s) = 2 m/s

3 Answers

1280 views

What is the total displacement?

John Adney
Answered: Jul 27, 2017

I think the answer should be 14.14 for this question.

2 Answers

857 views

What would be the stopping distance "s" from and initial speed of 70 mi/HR with the same constant acceleration?

John Smith
Answered: Dec 25, 2024

196 ft
2. 196.0 ft
3. 196 feet
4. 196.0 feet

1 Answer

461 views

How do you calculate displacement?

D.Anthonyda
Answered: Feb 06, 2018

In order to calculate the displacement, one could simply draw a vector from the starting position up to the final position. The length of this vector line would give the displacement....Read More

3 Answers

280 views

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