The catapult of the aircraft carrier USS Lincoln accelerates an F/A-18 Hornet jet fighter from rest to take off speed of 173mi/h in a distance of 307ft. Assume a constant acceleration. a) Calculate the acceleration of the jet fighter in m/s^2 b) Calculate the time required for the fighter to be accelerated to take off speed.

A particle at rest undergoes an acceleration of 2.1 m/s2 to the right and 3.9 m/s2 up. a)What is its speed after 5 s in m/s? b)What is its direction with respect to the horizontal at this time? Answer between −180◦ and +180◦.

A ball is dropped from a height of 3 m and rebounds from the floor to a height of 2 m.a) What is the velocity of the ball just as it reaches the floor?b) What is the velocity just as it leaves the floor?c) If it is in contact with the floor for 0.02 s, what are the magnitude and direction of its average acceleration during the interval?

Question 8 An object is moving with constant non-zero acceleration along the +x-axis. Describe the shape of the graph of the velocity in the x direction as a function of time for this object. O a horizontal straight line. O a vertical straight line. none of the given choices O a parabolic curve. a straight line making an angle with the time axis.

NASA has fired a rocket straight up into the air from ground level with an unknown initial velocity. It reaches a maximum height of 164,000 feet. This happened in Cape Canaveral therefore the rocket is under the acceleration of Earth's gavity in which we all know is -32 ft/sec/sec.                                           Please round your answers to two decimal places. a). Find the time it takes for the rocket to reach maximum height. b). find the initial velocity necessary to reach that height.

1. The cheetah can reach a top speed of 114 km/h. while chasing its prey in a short sprint, a cheetah starts from rests and runs 45 min in a straight line, reaching a final speed of 72 km/h. a. Determine the cheetah's average acceleration during the short sprint, and b. Find its displacement at t= 3.5 s O 4.4m/s2, 27m O 5.6m/s2, 56m O 1.2m/s2, 15m

d) Calculate the instantaneous acceleration as a function of time   e) Calculate my instantaneous acceleration at (i) t=0s and (ii) t=2s   f) Calculate my displacement vector for the interval t=0 to 2.0 seconds

Can an object have a negative acceleration and be speeding up? If so, describe a possible physical situation and a corresponding coordinate system. If not, explain why not.

A certain freely falling object, released from rest, requires 1.55 s to travel the last 22.0 m before it hits the ground. (a) Find the velocity of the object when it is 22.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) m/s(b) Find the total distance the object travels during the fall. m