(b) Determine the acceleration at t = 2.0 s.SOLUTION(Use the following as necessary: t and At.)Knowing that the initial velocity at any time t is v,xi(39 – 0.8t2) m/s, find the velocity at any later time t + At:m/sFind the change in velocity over the time interval At:Δν.m/sTo find the acceleration at any time t, divide this expression by At and take the limit of the result as At approaches zero:Ava = limAt-0m/s?ΔεSubstitute t = 2.0 s (Enter your answer in m/s. Indicate the direction with the sign of your answer.):m/s?

Answered: Image /qna-images/answer/25a036e3-66a1-47b2-abf4-921ffac1c83d.jpg

Answered: (b) Determine the acceleration at t =…

Similar questions

Can you use these velocity components, together with y and a = 9.8m / (s ^ 2) to obtain the time of flight, t? Write the expression. Hint: x = vot and replace t using y = 1/2 * g * t ^ 2
SOLVE STEP BY STEP IN DIGITAL FORMAT 14. If the speed in (m/s) that a certain athlete reaches in a 200-meter race is described by the function v(x) =-0.005x(x - 300), where x is the recommended distance. a) What distance has the athlete traveled when he reaches his maximum speed?b) What is the maximum speed he reaches?
Plz plz solve for all parts … God bless
If we apply the above equations to the case of an object that does not change its direction of travel as it moves with constant acceleration, we find that the object: Undergoes a displacement Ax = x- x, . Note that displacement is a positive quantity if x > x, and a negative quantity if x < x,. Has average velocity v = (x - x )/t = (v + vo)/2. Note that velocity has the same sign as displacement. Travels distance d = |Ax| = |x – x,| . Note that distance is always a positive quantity. Has average speed d/t . Note that speed is always a positive quantity. Has constant acceleration a = (v – vo)/t . Acceleration may be positive or negative, depending on how velocity changes. - Xo For the case of an object that does change its direction of travel as it moves with constant acceleration, which of the quantities listed above are different? Question
A ball is thrown from an initial height of 4 feet with an initial upward velocity of 29 fus. The ball's height h (in feet) after t seconds is given by the following. h-4+291-167 Find all values of t for which the ball's height is 16 feet. Round your answer(s) to the nearest hundredth. (If there is more than one answer, use the "or" button.) initial height ground - seconds O-O
The position of a particle moving under uniform acceleration is some function of time t and the acceleration a. Suppose we write this position as x=ka™t", where k is a dimensionless constant. What values must m and n have? x = kamt"
solve the following exercise
A 2-stage rocket is fired from rest. Its acceleration data are shown in the graph below. Plot the v-t and s-t graphs describing the motion of the rocket-clearly showing the shape of the curve (or add a note) and values at inflection points. Show any calculations as well. Then find the velocity of the rocket and its elevation after 20 seconds of flight. a (m/s?) 25 18 (s) 15 20
A model rocket is launched with an initial upward velocity of 195 ft/s. The rocket's height h (in feet) after t seconds is given by the following. h=195t–16 Find all values of t for which the rocket's height is 87 feet. Round your answer(s) to the nearest hundredth. (If there is more than one answer, use the "or" button.) t = || seconds or O ground