What is the average speed (km/h) of sprinter who runs 11.7 meters in 16.4 seconds?
A sprinter runs 89 meters in 9 seconds. What is his average speed?
e A sprinter runs the one-hun dred-yard dash in 9. 5 seconds. What was the runner's speed in kilometers per hour?
Dr. Drew runs 175 meters East for 70 seconds, then walks back 10 meters West in 20 seconds. What is his speed in meters/second for the entire trip?
What is the average speed, in km/h, for a car that travels 23 km in exactly 15 min?
On a road trip, a driver achieved an average speed of 68 km/h for the first 86.0 km and an average speed of 38 km/h for the remaining 54.0 km. What was her average speed (in km/h) for the entire trip? Round your final answer to three significant figures.
What is the velocity over 4.0 seconds and the average speed over 4.0 seconds? Subn Constants A dog runs from points A to B to C in 4.0 s. (See the figure below. (Figure 1) Part B Find the do Express y Figure 1 of 1 20 E1.0m Provide Feedback 3 女↑ 3 4 PartA Find the dog's average velocity over this 4.0 second interval. Express your answer in meters per second to two significant figures. m/s 05 You have...
What must be your average speed in order to travel 350 km in 5.15 h? A) 66.0 km/h B) 67.0 km/h C) 68.0 km/h D) 69.0 km/h An airplane increases its speed at the average rate of 15 m/s^2. How much time does it take to increase its speed from 100 m/s to 160 m/s? A) 17 s B) 0.058 s C)4.0s D) 0.25 s What is the mass of an object that experiences a gravitational force of 685 N...
A rock is dropped from rest. It hits the ground after 16.4 seconds. What was the initial height of the rock, in km?
he driver of a car is initially moving at a constant speed of 72.0 km/h when a traffic light turns red. If 0.500 s reaction time is required before the brakes can be applied, what is the distance in meters traveled by the car before it begins to slow down? Average speed 8 Com pute the average speed in m/s of a runner who completes a mile in 4.00 min.
One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching top speed, then maintains that speed through the finish line. If a sprinter reaches his top speed of 10.8 m/s in 2.54 s, what will be his total time?