In a 4 km fun run, a person runs at a constant speed of 4.20 m/s...

Question

Question

Answer 1

Answer #1

fB Posiusn time 3 mls Lime e unole dlistan e ч.2 Avea ude geth

Answer 2

Similar Homework Help Questions

A person walks first at a constant speed of S.10 m/s along a straight line from...

A person walks first at a constant speed of S.10 m/s along a straight line from point to point m/s. and then back along the line from to at a constant speed of 2.75 (a) What is her average speed over the entire trip? m/s (b) What is her average velocity over the entire trip? m/s Need Help? eMeser The position versus time for a certain particle moving along the x axis is shown in the figure below. Find the...
A and B can both walk at a speed 2.2 m/s and run at a speed...

A and B can both walk at a speed 2.2 m/s and run at a speed 5.4 m/s. They start off together to go a distance 50 m. A walks for one half of the time it takes him to reach the distance, and runs for the remaining half the time. B, on the other hand, walks for half the distance, and runs for the remaining half the distance. Calculate how much sooner will A reach the distance as compared...
A person walks first at a constant speed of 4.50 m/s along a straight line from...

A person walks first at a constant speed of 4.50 m/s along a straight line from point to point Band then back along the line from to at a constant speed of 3.15 m/s (a) What is her average speed over the entire trip? m/s (b) What is her average velocity over the entire trip? m/s

A person takes a trip, driving with a constant speed of 97.5 km/h, except for a...

A person takes a trip, driving with a constant speed of 97.5 km/h, except for a 22.0-min rest stop. If the person's average speed is 72.6 km/h, find the following. (a) How much time is spent on the trip? (b) How far does the person travel? A truck covers 40.0 m in 8.65 s while uniformly slowing down to a final velocity of 3.40 m/s. (a) Find the truck's original speed. (b) Find its acceleration.
he driver of a car is initially moving at a constant speed of 72.0 km/h when...

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.
A biker runs at constant speed 34 m/s around a circular track with a centripetal acceleration...

A biker runs at constant speed 34 m/s around a circular track with a centripetal acceleration of magnitude 12.5 m/s^2 a) what is track's radius ? b) what is the magnitude of angular velocity of the sprinter? c) what is the magnitude of the sprinter's angular acceleration? d) how long does it take to complete one revolution this time is called "period of motion"? e) how many revolutions per minute does the sprinter make?

11.78 A car is traveling at a constant speed of 54 km/h when its driver sees...

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...
Keith walks north with a constant speed and it takes him 7.00 minutes to walk 0.588...

Keith walks north with a constant speed and it takes him 7.00 minutes to walk 0.588 km. Then he turns back and walks south at the same speed for 10.0 minutes. a.) Draw a diagram showing his path. Label the path length of each leg o the journey. Draw the total displacement vector on the diagram. b.) What was the total elapsed time (in seconds) for Keith's journey? c.) what was the path length (in meters)? d.) what was the...
A particular airplane will reach liftoff at a speed of 120 km/h. (a) What minimum constant...

A particular airplane will reach liftoff at a speed of 120 km/h. (a) What minimum constant acceleration does the airplane require for it to liftoff after a takeoff run of 220 m? (Enter the magnitude only.) m/s2 (b) How long does it take the airplane to reach liftoff speed? S

Problem 4 A car travels along a straight road at a speed of 20 m/s, it...

Problem 4 A car travels along a straight road at a speed of 20 m/s, it decelerates uniformly to a stop over a period of 30 seconds; the car then it travels in the opposite of the original direction accelerating uniformly to a speed of 30 m/s in that direction over a period of 15 seconds a) Prepare a scaled time-velocity graph. b) Prepare a scaled time-acceleration graph. c) Prepare a scaled time-distance traveled graph. d) Determine average velocity of...