A car making a 108-km journey travels 43 km/h for the first 54 km. How fast must it go during the second 54 km to average 54 km/h?
A car making a 108-km journey travels 43 km/h for the first 54 km. How fast...
1) A car making a 102- km journey travels 38 km/h for the first 51 km. How fast must it go during the second 51 km to average 46 km/h? km/h Submit
A car completes a journey in 10 minutes. For the first of the distance the speed was 60 km/h and for the second half the speed was 40 km/h. how far is the journey?
If a car travels 40 mph for the first 50 miles, how fast would it need to travel in the second 50 miles to average 50 mph for the entire 100 mile trip
How do you get 2b's ans 160km/hr? A motorist travels to a city 375 km away. He wants to average 75 km/hr overall but averages only 55 km/hr for the first 3 hr. How fast must he go, for the remainder of the trip? At t = 0 a motorist M moving at constant velocity 100 km/h passes a police car P moving at 40 km/h, which immediately begins pursuit at constant acceleration. (a) How fast will P be moving...
A car travels in a straight line a distance of 8.4 km at an average speed of 70 km / h before stopping due to lack of fuel. Following this stop, the driver of this car walks for 30 minutes over a distance of 2.0 km to get to the nearest gas station. at. What is the total distance the driver has traveled between the beginning of the journey of her car and until he arrives at the gas station?...
What is the average speed, in km/h, for a car that travels 23 km in exactly 15 min?
The Taiwan high Speed Train travels at 300 km/h. How fast are the tops of its wheels travelling. The answer is 600 km/h ,why?
11.78 A car is traveling at a constant speed of 54 km/h when its driver sees a child run into the road. The driver applies her brakes until the child returns to the sidewalk and then accelerates to resume her original speed of 54 km/h; the acceleration record of the car is shown in the figure. Assuming x = 0) when t = 0, determine (a) the time t, at which the velocity is again 54 km/h, (b) the position...
An automobile travels on a straight road for 49 km at 39 km/h. It then continues in the same direction for another 49 km at 78 km/h. (a) What is the average velocity of the car during this 98 km trip? (Assume that it moves in the positive x direction.) (b) What is the average speed?
An automobile travels on a straight road for 35 km at 35 km/h. It then continues in the same direction for another 50 km at 55 km/h. (a)What is the average velocity(km/h) of the car during this 85km trip?(Assuming that it moves in the positive-x direction) (B)What is its average speed in m/s?