Pilots of high-performance aircraft risk loss of consciousness if the undergo accelerations ceeding about 5g. For a military jet flying at 2470 km/hr (about twice the speed of sound), hat is the minimum time it takes the jet to reverse its direction in a circular turn while eping the acceleration below the 5g safety threshold?

A horse trots away from its trainer in a straight line, moving 38 m away in 9.0 s. It then turns abruptly and gallops halfway back in 1.8 s. Calculate (a) its average speed and (b) its average velocity for the entire trip, using “away from the trainer" as the positive direction.

Salmon often jump waterfalls to reach their breeding grounds. Starting downstream, 1.81 m away from a waterfall 0.347 m in height, at what minimum speed must a salmon jumping at an angle of 40 ◦ leave the water to continue upstream? The acceleration due to gravity is 9.81 m/s 2 . Answer in units of m/s.

The velocity of a particle moving in the xy plane is given by = ( 5.50 r- 5.00 P)i + 9.00). with V in meters per second and t- 0l in seconds. At t-1.40 s and in unit-vector notation, what are lal the xcomponent and (bi the y component of the acceleration? ) When of ever) is the acceleration zero? (d) At what positive time does the speed eoual 100 ms? 1 unit (al Number } unit This anwer hannunts degrees Number O Number Unit (d) Number Unit Hint Pa GO Tutorial Save for Later times Attempts: unlimited Smit Arr

A particle mnoves in a straight line with an initial velocity of 50 m/s and constant acceleration 50 m/s. (a) What is its displacement at t = 8 s? (b) What is its velocity at this same time?

A horse canters away from its trainer in a straight line, moving 116 m away in 14.0 s. It then turns abruptly and gallops halfway back in 4.8 s. Calculate (a) its average speed and (b) its average velocity for the entire trip, using "away from the trainer" as the positive direction.

a particle starts from rest along a straight line. Sometime t later it is found to be 450 M away from starting point and moving with speed of 15m/s. Assuming constant acceleration, caculate particle's acceleration and find time t.

An accelerating Cheetah reaches a velocity of 25 m/s in 4.5s after which it immediately begins to slow down. What is its acceleration and what is its effective striking range (ie., what distance does it cover)?

A Fast Pitch. The fastest measured pitched baseball left the pitcher's hand at a speed of 45.0 m/s. If the pitcher was in contact with the ball over a distance of 1.50 m and produced con- stant acceleration, (a) what acceleration did he give the ball, and (b) how much time did it take him to pitch it?

A particle moves along the positive x axis with a constant acceleration of 2.70 m/s and over time reaches a final speed of 10.0 m/s. (a) If the particie's initial veiocity was 2.2o? mis, what is its displacement during this time, once it reaches its final speed? (Express your answer in vector form.) (b) What is the distance the particle trevels during this time? (C) If the particle's initial velocity was instead -2.20î mis, what is its displacement during this time? (Express your answer in vector form.) A = (d) What is the total distance it travels given the initial velocity in part (c)7