This graph is for understanding the concepts of variable velocity, uniform velocity, uniform acceleration, negative acceleration, displacement and average velocity of a body moving along a straight line.
Answer the following questions:
a. What is the velocity of the car at 2, 8, 16 and 20 s?
b. What is the acceleration of t

Please see the attached file.
22. For the case of plane polar coordinate r, theta, write the unit vectors and e_theta in terms of i and j. Hence show that and. By starting with r = re_r, and differentiating, rederive the expressions for the components of the velocityandacceleration vectors.

This question will strengthen your concepts of linear motion. A graph showing variation of velocity of a car moving along a straight line is given. You are required to find acceleration of the car at different moments of time and its displacement.

1. A particle oscillates between the points x = 40 mm and x = 160 mm with an acceleration a = k( 100 - x), where a and x are expressed in mm/ s^2 and mm, respectively, and k is a constant. The velocity of the particle is 18 mm/ s when x = 100 mm and is zero at both x = 40 mm and x = 160 mm. Determine (a) the value of k,( b) the

An object is thrown downward from the top of a building with an initial velocity of 30 m/s. Assuming a positive direction of y measured downward from the top, derive an expression for (a) the velocityand (b) the displacement as a function of time. Assume y(0)=0

A. What is the relationship between the radius and the velocity of a rotating object?
B. What is the relationship between the velocity of a rotating object and the centripetal force exerted on it?
C. The Moon orbits Earth at a distance of about 3.84 × 10^8 m in a path that takes 27.3 days to
complete. What is the c

Question: Bar BDE is attached to two links AB and CD. Knowing that at the instant shown link AB rotates with a constant angular velocity of 3 rad/s clockwise, determine the acceleration (a) of point D, (b) of point E.
Please refer to attachment to see a diagram of this scenario.

A ski jump is design to follow the path given by the equations:
x=3.5t^2 and y=20.0+0.120t^4 - 3.00 sqrt(t^4+1) (0 less than or equal to (t) less than or equal to 4.00 s) ( x and y in m, t in s). Find the velocityandacceleration of a skier when t = 4.00 seconds.

Find the vehicle's velocityandacceleration at each of the following times.
a) 1 second
b) 10 seconds
Please refer to the attachment to view the full question, including the velocity calculation to be used for this question.