A race car travels northward on a straight, level track at a constant speed travels 0.751 km in 22.0 s. The return trip over the same track is made in 27.0 s. (a) What is the average velocity of the car in m/s for the first leg of the run? 34.136 m/s (b) What is the average velocity for the total trip? 7.136 X m/s

On May 26, 1934 a stainless steel diesel train called the zephyr set the world's nonstop distance speed record for trains.  It's run from Denver to Chicago  took 13 hours, 4 minutes,  58 seconds,  and was witnessed by more than a million  people along the route. The total distance traveled was 1633.8 km what was average speed in km/h? Km/h What's the average speed in m/s? M/s

An object is thrown straight up from the top of a building that is 31.2 m high. The object is thrown with a velocity of 16.4 m/s. At the same time the object is thrown upwards, a person runs along the ground with a constant speed of 3.4 m/s. When the object hits the ground, how far has the person gone in meters?

A man drives a car in a straight line south along a highway. He travels with a velocity of 112.6 km/hr S. How much time, in minutes, would he save if he were to instead travel with a velocity of 120.7 km/hr south?

A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 60.0 min at 95.0 km/h, 14.0 min at 100.0 km/h, and 60.0 min at 50.0km/h and spends 25.0 min eating lunch and buying gas. (a) Determine the average speed for the trip. (b) Determine the distance between the initial and final cities along the route.

A motorist drives south at 10.0 m/s for 3.00 min, then turns west and travels at 15.0 m/s for 2.00 min, and finally travels northwest at 20.0 m/s for 1.00 min. For this 6.00-min trip, find the average velocity. Let the positive x axis point east.

(a) Calculate the height (in m) of a cliff if it takes 2.30 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.07 m/s. (Enter a number.) m (b) How long (in s) would it take to reach the ground if it is thrown straight down with the same speed? (Enter a number.) s †

An automobile travels on a straight road for 40 km at 30kph. It then continues in the same direction for another 40 km at 60 kph. (a) What is the average velocity of the car during this 80 km trip? (Assume that it moves in the positive x direction.) (b) What is the average speed? (c) Graph x versus t and indicate how the average velocity is found on the graph. The position of an object moving along an x-axis is given by x = 3t – 4t² + t³, where x is in meters and t is in seconds. Find the position of the object at the following values of t: (a) 1s, (b) 25, (c) 3s, and (d) 4s. (e) What is the object's displacement between t = 0 and t = 4s? (f) What is the average velocity for the time interval from t =2s and t = 4s? The position of a particle moving along the x-axis is given in centimeters by x = 9.75 + 1.5t³, where t is in seconds. Calculate (a) the average velocity during the time interval t = 2s to t = 35; (b) the instantaneous velocity at t = 2s; (c) and the instantaneous velocity…

The driver of a car traveling down the interstate slams on the brakes, causing the car to skid to rest over the distance of 152.4m. If the car experienced an acceleration of -15.34 m/s squared during this time how long did it take for the car to come to rest?

A person on a road trip drives a car at different constant speeds over several legs of the trip. She drives for 10.0 min at 60.0 km/h, 20.0 min at 65.0 km/h, and 30.0 min at 50.0 km/h and spends 55.0 min eating lunch and buying gas. (a) What is the total distance traveled over the entire trip (in km)? km (b) What is the average speed for the entire trip (in km/h)? km/h