2. V A particle moves according to the equation ¤ = 10t², where is in meters and t is in seconds. (a) Find the average velocity for the time interval from 2.00 s to 3.00 s. (b) Find the average velocity for the time interval from 2.00 to 2.10 s.

a. 0.400 m/s2b. 0.555 m/s2c. 0.308 m/s2d. 0.385 m/s2

I only need help with "part b"

A high diver leaves the end of a 5.5 mm high diving board and strikes the water 1.2 ss later, 3.5 mm beyond the end of the board. Considering the diver as a particle,   Part C Determine the maximum height reached. Express your answer to two significant figures and include the appropriate units.   Part D Determine the magnitude of the velocity v⃗fwith which she enters the water. Express your answer to two significant figures and include the appropriate units.   Part E Determine the angle of the velocity v⃗f with which she enters the water. Express your answer to two significant figures and include the appropriate units.

A circular racetrack has a distance of 755 m. A racer is currently driving her car on the racetrack. As she starts the car from rest, it begins to accelerate to a speed of 120 kph in 9 s. a. Determine the magnitude of the total acceleration of the car, 4 s after the car begins to increase its speed. b. If she maintains the speed of the car to be 120 kph, determine the magnitude of the total acceleration of the car after 5s. c. Upon accelerating to 120 kph, will the car pass its starting point? Prove using kinematic equations.

2. A jet plane has a takeoff speed of vtakeoff = 73 m/s and can move along the runway at an average acceleration of 2.4 m/s2. The runway is 1.2 km. Write out the 3 Kinetic equations. a. b. Write out the values of initial position, initial velocity, and acceleration. How many seconds will it take for the plane to reach takeoff speed? с. d. How far will the plane have to travel to get to takeoff speed? will the plane be able to get to take off before it gets to the end of the runway? е.

A suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other, taking 2.90 s. Then security agents appear, and the man runs as fast as he can back along the sidewalk to his starting point, taking 10.5 s. What is the ratio of the man's running speed to the sidewalk's speed? Number i Units

Please answer A.B.C questions please thank you!

The graph shown below is the velocity, in cm/sec, of an object moving along the x-axis between times t = 0 and t = 5 seconds. Positive velocity indicates motion to the right. 2 v(t) + 3 + t 5 (a) At time t = 5, where is the object in relation to its starting position? O The object is right of its starting position. O The object is at its starting position. O The object is left of its starting position. (b) At time t = 1, how far is the object from its starting position? cm (c) How far has the object traveled between t = 0 and t = 5? cm

help on two part question  A. If a 10 kg mass, moving at 5 m/s to the right, hits and sticks to a 16 kg mass, moving at 19 m/s to the right, and they travel off together at the same speed to the right, find that speed. B. If a 5 kg mass, moving at 7 m/s to the right, hits and sticks to a 19 kg mass, moving at 6 m/s to the left, and they travel off together at the same speed, find that speed.