A runner is going 7 m/s around a curved section of track that has a radius of 64 m. What is the runner's acceleration? ?m/s2 radially inward

Could I have help with this average speed and velocity problem. I already know the answers"average velocity = 2.7 m/s due east, ­average speed = 8.0 m/s"  but I need a detailed explanantion on how and why because I am not understanding and getting the same answers

Hint 1 object's at t = 1 s and t = 6 s. An object has an acceleration of +1.2 cm/s². At t = 4 s, its velocity is -3.4 cm/s. Determine the v(t = 1 s) cm/s %3D cm/s %3D (s 9 = ?)a

A runner is going 7 m/s around a curved section of track that has a radius of 48 m. What is the runner's acceleration? |m/s² radially inward

If the velocity is constant towards the right direction, the graph of displacement x vs time t is a A. line with a positive slope. B. line with negative slope. C. parabola in the first quadrant. O D. parabola in the 4th quadrant. An object is moving towards the right direction. Velocity is constant. The graph of velocity vs time t is a line O A. along the t axis B. parallel to the t axis C. parallel to the v axis. O D. with nonzero slope. Velocity of a moving object is towards the right. Velocity is constant. The graph of acceleration a vs time t is a A. line parallel to the acceleration a axis. B. line along the acceleration a axis. C. line along the t-axis. OD.line with positive slope.

24. A rocket is fired upward on a straight upward trajectory at 90 degrees to the surface perfectly, starting from rest with an acceleration of +29.4 m/s² for the first 4 seconds of travel. After finishing these 4 seconds it runs out of gas but continues its upward movement on its original path for a short time. a. b. What is the maximum height it reaches? If after reaching the maximum height it is allowed to fall in free fall in a perfectly linear path towards the earth, what is its final speed just before hitting the ground? Select one: - b. a. Maximum height = 135.8 meters, final velocity = 940.8 meters/seconds Maximum height = 940.8 centimeters, final velocity = 135.8 centimeters/seconds c. Maximum height = 940.8 centimeters, final velocity = 13.58 meters/seconds d. Maximum height = 940.8 meters, final velocity = 135.8 meters/seconds

You throw a ball off a cliff at t = 0. Its motion is described by this position vector = 40 mj + (5 m/s)ti - (4.9 m/s²)t² j. How far from the bottom of the cliff will it hit water? Express your answer to two significant figures and include the appropriate units. HA Value Units = 1 Submit Request Answer

A car accelerates at a constant rate from rest to 16 m/s in a distance of 74 m. What is the magnitude of its acceleration, in m/s2? Your answer needs to have 2 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.

1) A race car travels around a circular race track for which the start line and finish line are at the same location.   If the race is 888km long and the radius of the track is 1.414km, how many times did the car go around the track?  The race takes 2 hours and 45 minutes, what is the race car’s average velocity (in m/s) over the entire race?  What is the race car’s average speed (in m/s) over the entire race?

An object is moving to the right with a constant speed of 21 m/s for 5.0 s. What is the acceleration of the object, in m/s²? Your answer needs to have 2 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.