You drop a package from a plane flying at 200m/s. Immediately after the package is dropped, one of the engines fails and theplane slows down to 100m/s.The package will? A. Remain vertically under the plane while falling B. Lag behind the plane while falling C. Impossible to tell D. Move ahead of the plane while falling
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- An object is thrown horizontally with an initial velocity of 10 m/s from the roof of a building 60 m tall. How long will it take to hit the ground? A. 3.5 s B. 6 s C. 7.5 s D. 10 s4. There are two frogs named Eroggy and Jumpy. They jumped from the top of a vertical cliff. Froggy just drops and reaches the ground in 3.50 s, while Jumpy jumps horizontally ((bida bida siya, char! Hahall with an initial speed 95 cm/s. a. How far from the base of the cliff will Jumpy hit the ground? b. How high is the vertical cliff? c. If Jumpy jumps with an angle of 30 degrees with respect to the horizontal, what should be its initial velocity for it to land on the same spot as he did when he jumped horizontally?A javelin thrower standing at rest holds the center of the javelin behind her head, then accelerates it through a distance of 70cm as she throws. She releases the javelin 2.0m above the ground traveling at an angle of 30° above the horizontal. In this throw, the javelin hits the ground 62m away. a. What was the acceleration of the javelin during the throw? Assume that it has a constant acceleration. b. What is the speed of the javelin as it leaves the hand of the thrower? c. What is the maximum height reached by the javelin? O 10.5m 9.8m O 8.5m O 7.0m
- Is the object accelerating and if so what direction? A. Yes, to the right B. Yes, to the left C. No is moving at a constant velocity D. No, it is at restA tennis ball is thrown horizantally to the point on the center of the wall. The wall is 50 m away from the thrower. If the ball strikes the wall 2.0 cm below the aim point. Calculate the tennis balls intial speed when it left the hand. A. 580 m/s B. 1080 m/s C. 891 m/s D. 781m/s E. 480 m/sIf you throw a ball with an initial horizontal velocity of 20 m/s and an initial vertical velocity of 40 m/s. a. What will be the vertical displacement after 3 seconds? b. What will be the horizontal displacement after 3 seconds? c. What will be the vertical velocity after 3 seconds? d. What will be the horizontal velocity after 3 seconds?
- A ball of mass 0.15 kg is attached to the end of 1.1 m long cord. The ball is swung in a vertical circle. Determine the minimum speed (in m/s) of the ball at the top of the motion so that the ball continues moving in a circle. a. 2.1 b. 4.5 c. 3.3 d. 1.76. In the skateboarder scenario below, a Determine the skater's vertical displacement during the jump? b) To the nearest hundredth of a second, determine how long was the skateboarder in the air? A skateboarder rolls horizontally off the top of a staircase at a speed of m 14.5 m/s and lands at bottom of the stairs. The staircase has a horizontal length of 8.00 m. We can ignore air resistance.y = 25 m/s 35 -20 m 1. As a volcano erupts, one particular lava rock is projected from the mouth of the volcano at 35 degrees above the horizontal, calculate: a. The lava rock's total time in the air. b. Total horizontal distance traveled of the lava rock. c. The rock's final total velocity.
- What is correct about the two-dimensional free fall of a ball tossed up at some angle? a. When the projectile comes back to its initial height, its velocity is equal to the initial velocity. b.The vertical acceleration is negative because gravity acts in the downward direction. c. The vertical acceleration switches sign between the upward and downward sections of the free fall. d. The horizontal velocity of the projectile remains constant.Ball A is rolled across the top of a table and as it reaches the edge it has a horizontal velocity, v. Just as it rolls off the edge another ball, Ball B, is dropped from rest at the same height. Which ball will hit the ground first? a) Ball B b) Ball A c) Both will hit the ground at the same time. At the time of impact for each, which ball will have the greatest speed? a) Both will hit the ground with the same speed. b) Ball B c) Ball AA spring gun that is mounted at the edge of a 2.0-m-high table launches a steel ball at an angle of 230 above the horizontal with an initial speed of 7.0 m/s. What is the total time of flight of the steel ball? (Assume that g = 9.81 m/s2.) a. 0.80 s b. 0.60 s c. 0.40 s d. 1.0 s e. 1.2 s