If the motion of a person on skateboard is described by the equation: x = 2t + 5. Describe the motion by giving specifc values for velocity and acceleration.

v(t) = 4t2 - 3t3/2. What is the change in displacement (in metres) from t=1 to t=2?

Ce A webassign.net/web/Student/Assignment-Responses/submit?dep=27519463&tags=autosave#question3572106_11 (h) 0.0207 3 DETAILS A walker covers a distance of 2.2 km in a time of 32 minutes. What is the average speed of the walker for this distance in km/h? km/h 5. DETAILS A tortoise and a hare cover the same distance in a race. The hare goes very fast for brief intervals, but stops frequently, whereas the t hare. (a) Which of the two racers has the greater average speed over the duration of the race? OThe tortoise has the greater average speed since he was the winner. The hare has the greater average speed since he can go faster. Their average speeds are equal. OIt's impossible to determine who had the greater average speed without collecting data. (b) Which of the two racers is likely to reach the greatest instantaneous speed during the race? OThe tortoise has the greater instantaneous speed since he was the winner. OThe hare has the greater instantaneous speed since he can go faster.

pls help solve this problem

The motion of a particle is given by x = A sin3(ωt). Enter an expression for the particle's velocity, v.  Enter an expression for the particle's acceleration, a.

A cart is propelled over an its greatest y coordinate? xy plane with acceleration components a, = 6.8 m/s? and a, = -1.5 m/s2. Its initial velocity has components Vox = 7.3 m/s and voy = 12.4 m/s. In unit-vector notation, what is the velocity of the cart when it reaches Number Units

All I need is the letter of correct answer. An airplane must have a velocity of 50 m/s in order to take off. What must the acceleration of the airplane be if it is to take off from a runway 500 m long? A) 2.5 m/s˄2 B) 3.2 m/s˄2 C) 5.0 m/s˄2 D) 10 m/s˄2 15A car with its brakes applied has an acceleration of -1.2 m/s˄2. If its initial velocity is 10 m/s, the distance the car covers in the first 5 second after the acceleration begins is A) 15 m; B) 32 m; C) 35 m; D)47 m.

QUESTION 1 v (m/s) Relationship between velocity and time of a particle moving along a straight line is given by the (v – t) graph shown. Given 10 v = (t2 – 15t + 54) m/s s = 0 m when t = 0 s. Plot the (a – t) graph and determine t1. t1 а. b. the total distance covered for the duration 0sts 6 s. 2 6. t (s) SOALAN 1 -15 ------

The velocity of a particle which moves along the x axis is given by v = 2- 4t +5 tz, where t is in seconds and v is ft/s. The particle is at the position x, = 3ft when t -0. Find the ffg: 1. position when t = 3sec 2. Acceleration when t = 3sec

Q2. a) For the displacement equation, s = t2 +t-5, find the velocity and acceleration equations and plot each equation for the first 5 seconds. b) Compute your average velocity in the following two cases: (a) You walk 73.2 m at a speed of 1.22 m/s and then run 73.2 m at a speed of 3.05 m/s along a straight track. (b) You walk for 1.00 min at a speed of 1.22 m/s and then run for 1.00 min at 3.05 m/s along a straight track. (c) Graph x versus I for both cases and indicate how the average velocity is found on the graph.