A motorist drives north for 37.0 minutes at 76.5 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.60 h. (a) What is his total displacement? km (b) What is his average velocity? km/h Need Help? Watch It

A ball is dropped from rest from the top of the building. What is the velocity of the ball 3.0 seconds after it is released? Answer in meters per second, and use upward as the positive direction.

John walks 1.80 km north, then turns right and walks 1.20 km east. His speed is 1.40 m/s during the entire stroll.

Part (a) What is its velocity after 23 seconds? Give your answer in m/s. Numeric : A numeric value is expected and not an expression. V = Part (b) How far has it gone in meters? Numeric : A numeric value is expected and not an expression. X =

A roller coastre car rapidly picks up speed as it roles down a slope.  As it starts down the slope, its speed is 4 m/s.  But 3 seconds later, at the bottom of the slope, its speed is 22 m/s.  What is the average acceleration?

Chapter 02, Problem 10 In reaching her destination, a backpacker walks with an average velocity of 1.26 m/s, due west. This average velocity results, because she hikes for 6.62 km with an average velocity of 2.54 m/s due west, turns around, and hikes with an average velocity of 0.381 m/s due east. How far east did she walk (in kilometers)? dw VE West East dɛ Number Units the tolerance is +/-2% Click if you would like to Show Work for this question: Open Show Work

A car starts from 2.00 m/s and accelerates at 4.00 m/s2 for 6.0 s, it coasts for 5.00 s, and then slows down at a rate of 2.00 m/s2to a stop. How far has it traveled, in meters? Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

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Assume that you are driving a car at 10.0 km/h and then you accelerate to 80.0 km/h with an acceleration of 3.50 m/s². How much time will it take until you reach the velocity 80.0 km/h? (Provide you answer in s with two decimal places.) Your Answer:

Some experimental researcher tells us that the position of an object as a function of time is given by x(t) = at3 - bt2 + ct - d, where the constants are a = 3.6 m/s3, b = 4.0 m/s2, c = 60 m/s and d = 7.0 m. Find the average acceleration over the first 2.4 seconds. A) 18 m/s/s B) 54 m/s/s C)36 m/s/s D) 76 m/s/s