A hot-air balloon is ascending at the rate of 13 m/s and is 64 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground? (a) Number i (b) Number Units Units
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- A hot-air balloon is ascending at the rate of 13 m/s and is 87 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?A missile silo is used to launch military rockets vertically upward out of the silo, giving the rocket an initial speed of 79.6 m/s at ground level. As the rocket clears the silo, the engines fire, and the rocket accelerates upward at 3.90 m/s2 until it reaches an altitude of 1,080 m. At that point its engines fail, and the rocket goes into free fall, with an acceleration of -9.80 m/s². (You will need to consider the motion while the engine is operating and the free-fall motion separately. Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) (a) Determine the velocity of the rocket (in m/s) at the end of the engine burn time and also the burn time (in s). (For the velocity, indicate the direction with the sign of your answer.) velocity at end of engine V = 92.22 Check your kinematic equation relating vo, V1, ay, and AYo → 1 (where velocity of rocket as it clears the silo, v, = velocity of the rocket at…The best rebounders in basketbal have a vertical leap of about 115.35 cm. What is their initial "launch" speed off the ground? Answer: Check
- A “car” is sent a up tilted air track. If the initial speed is 0.43 m/s, how high in mm will the car rise vertically from where it started? Can you help with a visual aid; and then the mechanics of calculation.The best leader in the animal kingdom is the luma, which can jump to a height of 12 ft when leaving the ground at Ana angle if 45 degrees with what speed in si units must the animal leave the ground to reach that heightAttempting to run out the clock in a basketball game, a player throws the ball straight up from height yo. An opposing player catches the ball coming down, at the same height. How much time was used up while the ball was in the air? [Data : yo = 1.20 m; maximum height of the ball = 7.32 m ] Submit Answer Tries 0/12
- An object fell from the balcony of a high-rise building. It hit the ground with a final speed of 14 m/s. The vertical height of the balcony must have been?A ball is throw hoard from the ground with initial velocity vi= 14 m/s and reaches height of h above the ground before falling back down. Take the upwards direction to be positive. Neglect air resistance. (F) Calculate the value of delta t in seconds. (G) What is the total displacement, in meters, of the ball going through its entire motion: traveling from the ground to the top then falling back to the ground? (H) Enter an expression for the total time of flight of the ball: the time from when it is launches to when it lands ba on the ground. (I) Express this time in terms of vi and a. Calculate the value of delta t tot in seconds. (J) Enter an expression for delta t tot in terms of the variable delta t tot in terms of the variable delta t, the time of ascent from the ground to the top of the trajectory. (K) Express the velocity of the ball right before it hits the ground, vf, in terms of vi, delta t and a. (L) Express vf in terms of vi.A hot-air balloon is ascending at the rate of 14 m/s and is 91 m above the ground when a package is dropped over the side. (a) How long does the package take.to reach the ground? (b) With what speed does it hit the ground? (a) Number i Units (b) Number i Units