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Author Question: An x-t graph is drawn for a ball moving in one direction. The graph starts at the origin and at t = ... (Read 14 times)

mia

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on: Jul 28, 2018
An x-t graph is drawn for a ball moving in one direction. The graph starts at the origin and at t = 6 s the velocity of the ball is zero. We can be positive that at t = 6 s,
 a. the slope of the curve is non-zero.
  b. the acceleration is constant.
  c. the ball has stopped. d. none of the above answers is always correct.

Question 2

A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8.00 s. What is the speed after the first 5.00 s of acceleration? (Hint: First convert the speed to m/s.)
 a. 34.7 m/s
  c. 23.1 m/s
  b. 44.4 m/s
  d. 17.4 m/s


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meow1234

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


mia

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Reply 2 on: Jul 28, 2018
Gracias!

xthemafja

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Reply 3 on: Yesterday
Excellent

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