One object dropped from the top of a tall building, and one second later a second object is dropped. Neglecting air resistance, the distance between the falling objects will a. Be constant b. Decrease c. Increase d. Depend on their weight e. Depend on the speed of the plane. Explain your reasoning:
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- a) To what height will a 450 g soccer ball rise if it is kicked directly upward at 8 m/s? b) Neglecting wind resistance, use your kinematic equations to determine how long does it take for the ball to get to the top of it's trajectory? c) What is the hang time of the ball? Round answers to nearest hundredth.U m/s'] C. 10 m/s? d. [-5 m/s', 5 m/s] Consider a ball thrown up from the surface of the earth into the air at an angle of 30° above the horizontal. Air resistance is negligible. Just after the ball is released, its acceleration is: a. Upwards at 9.8 m/s? b. Upwards at 4.9 m/s? C. Downwards at 9.8 m/s? d. 0 m/s? A hunter with an air blaster gun is preparing to shoot at a monkey hanging from a tree. He is pointing his gun directly at the monkey. The monkey's got to think quickly! What is the monkey's best chance to avoid being smacked by the rubber ball? a. The monkey should stay right where he is: the bullet will pass beneath him due to gravity. b. The monkey should let go when the hunter fires. Since the guns pointing right at him, he can avoid getting hit by falling to the ground. C. The monkey should stay right where he is: the bullet will sail above him since its vertical velocity increases by 9.8 m/s every second of flight. d. The monkey should let go when the hunter fires. He…. A 3.0kg cannon ball is shot from a cannon at a speed of 20m/s. The cannon is oriented50 degrees above the horizontal and the cannon’s barrel is 8.0m above the ground. Youwant to position a mat that will catch the cannon ball.a. Determine how much time the cannon ball will spend in flight.b. Draw a force diagram for three points during the cannon ball’s flight (1) while itis being shot from the cannon, (2) when it is at its maximum height, and (3) whenit is half-way between the maximum height and the mat.c. Determine the horizontal distance from the end of the barrel where you shouldplace the mat so that it will catch the ball.d. How fast is the cannon ball moving just before it hits the mat?
- An object is sliding across a frictionless surface at a velocity of 2.40 m/s toward the origin. When it is 6.0 m from the origin, it suddenly experiences an acceleration of -1.60 m / s. If the acceleration remains constant, what will its distance from the origin be when its velocity reaches -12.0 m/s? -80.65 m -37.2 m -40.43 m -16.40 m Next Page Page 6 of 10q20A golf ball was hit and projected at an angle of 60° with the horizontal. If the velocity was 50.0 m/s. (neglecting air resistance), Calculate: a. Initial horizontal velocity (Vix) b. Initial vertical velocity (Viy) c. The time the golf ball reached its maximum height d. the total time the golf ball is in the air e. The maximum height the golf ball reached f. The horizontal distance the golf ball travelled/range
- A 60 kg skier starts from rest at a height H = 33 m above the end of a ski jump ramp. If the skier leaves the ramp at an angle of θ = 25º, determine the maximum height h the skier will reach.QUESTION 19 When a car gets to the bottom of a hill, the driver releases the accelerator so that the car coasts up the hill. If the car reaches a vertical height of 10 m from the bottom of the hill, what was the initial speed of the car at the bottom? (Neglect rolling friction and assume that the car does not slide.) а. 14 m/s b. 10 m/s C. 16 m/s d. 18 m/s е. 12 m/s