A basketball player jumps straight up for a ball. To do this, he lowers his body 0.330 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.840 m above the floor. (a) Calculate his velocity (in m/s) when he leaves the floor. (Enter a number.) m/s (b) Calculate his acceleration (in m/s2) while he is straightening his legs. He goes from zero to the velocity found in part (a) in a distance of 0.330 m. (Enter al number.) m/s² (c) Calculate the force (in N) he exerts on the floor to do this, given that his mass is 118 kg. (Enter a number.) N

A typical jetliner lands at a speed of 160 mi/h and decelerates at the rate of (10.0 mi/h)/s. If the plane travels at a constant speed of 160 mi/h for 1.00 s after landing before applying the brakes, what is the total displacement of the aircraft between touchdown on the runway and coming to rest?

A basketball player jumps straight up for a ball. To do this, he lowers his body 0.290 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.880 m above the floor. (a) Calculate his velocity (in m/s) when he leaves the floor. (Enter a number.) m/s (b) Calculate his acceleration (in m/s²) while he is straightening his legs. He goes from zero to the velocity found in part (a) in a distance of 0.290 m. (Enter a number.) m/s² (c) Calculate the force (in N) he exerts on the floor to do this, given that his mass is 114 kg. (Enter a number.) N

A golf ball rolls off a horizontal cliff with an initial speed of 10.5 m/s. The ball falls a vertical distance of 14.1 m into a lake below. (a) How much time does the ball spend in the air? (b) What is the speed v of the ball just before it strikes the water? (a) Number (b) Number i i Units Units ♦

A 20-kg child slides down a playground side with a constant acceleration of a=1.3m/s^2 parallel to the surface of the slide. The child starts sliding with an initial speed of V0. Refer to the figure

A small bag of sand is released from an ascending hot‑air balloon whose constant, upward velocity is ?0=2.95 m/s. Knowing that at the time of the release the balloon was 99.8 m above the ground, determine the time ? it takes for the bag to reach the ground from the moment of its release. Use g=9.81⁢ m/s^2. ?= ?

An elevator is initially moving upward at a speed of 13 m/s. The elevator experiences a constant downward acceleration of magnitude 3.5 m/s2 for 2.5 s.  You will be asked to find the elevator's final velocity.  What are the givens? Group of answer choices a = -3.5 m/s2, v0 = 13 m/s, t = 2.5 s a = 3.5 m/s2, v0=13 m/s, t = 2.5 s a = 3.5 m/s2, v0=13 m/s, vf = 0 m/s a = -3.5 m/s2, vf=0 m/s, t = 2.5 s

Consider a grey squirrel falling from a tree to the ground. Use a coordinate system in which positive is downward for this problem. a) Find the squirrel’s velocity, in meters per second, just before hitting the ground when it falls from a height of 1.3 m. Ignore air resistance.  b) The squirrel softens its landing by bending its legs when it touches the ground, thereby stopping itself over a distance of 7.6 cm. Assuming a constant rate of deceleration, find the squirrel’s acceleration during this process, in meters per second squared.

The position of a particle is r(t) = (5.0t2î – 4.0j + 6.0t³k) m. (a) What is the velocity of the particle at 0 s and at 1.0 s (in m/s)? (Express your answers in vector form.) v(0 s) m/s v(1.0 s) m/s (b) What is the average velocity between 0 s and 1.0 s (in m/s)? (Express your answer in vector form.) Vavg m/s

A ball is thrown upward at time t=0 from the ground with an initial velocity of 8 m/s (~ 18 mph). Assume that g = 10 m/s2. What is the greatest height (in meters) reached by the ball?