Which of the following will reach the maximum height? a. A golf ball is hit at an angle of 45° above horizontal with a speed of 50 m/s. b. A golf ball is hit at an angle of 50° above horizontal with a speed of 45 m/s.
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- Which of the following will reach the highest height? a. A golf ball is hit at an angle of 90° above horizontal with a speed of 80 m/s. b. A golf ball is hit at an angle of 80° above horizontal with a speed of 90 m/s.A fighter plane moving 211.0 m/s horizontally fires a projectile with speed 47 m/s in a forward direction 30.0° below the horizontal. What is the speed of the projectile with respect to a stationary observer on the ground? a) 240 m/s b) 283 m/s c) 253 m/s d) 278 m/sA fighter plane moving 233 m/s horizontally fires a projectile with speed 59 m/s in a forward direction 30.0° below the horizontal. What is the speed of the projectile with respect to a stationary observer on the ground? a) 249 m/s Ob) 2660 m/s c) 288 m/s d) 286 m/s
- PHYSICS. RATE WILL BE GIVEN! NO LONG EXPLANATION NEEDED. MULTIPLE CHOICE: CHOOSE THE CORRECT ANSWER A golfer strikes a golf ball with his golf club at 42 m/s and at 30° above the horizontal. If air resistance and wind are neglected, and if the golf course is perfectly flat and horizontal, at what speed would the golf ball land on the ground? a. 75 m/s b. 42 m/s c. none of the given choices d. 112 m/s e. 225 m/sA student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 20.5 m/s. The cliff is h = 26.0 m above a flat, horizontal beach as shown in the figure. V ⓇA student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of v, = 20.5 m/s. The cliff is h = 53.0 m above a flat, horizontal beach as shown in the figure. y
- IM-5 Jae throws a 0.350kg ball so that it is traveling at 7.50m/s y toward a wall, approaching the wall at an angle of 35.0° as shown in the figure to the right. After hitting the wall, the speed of the ball is still 7.50m/s but its direction has changed and it is now traveling at an angle of 35.0° away from the wall as shown to the right. a) Sketch on your paper a figure like the one shown to the right and show the vectors for the momentum before impact, PB, the momentum after impact, PA, and use them to find Ap, the change in momentum for the ball. Clearly label each vector. b) Calculate the sign and magnitude of Apx. the change in momentum in the x direction. c) Calculate the sign and magnitude of Apy the change in momentum in the y direction. d) If the collision lasts for 0.150 seconds, find the magnitude of the average force on the ball during the collision. What is the direction of the average force on the ball during the collision? Answer this by showing an arrow and label it as…You go watch your friend as she runs at a cross country meet. The first time she passes you, your friend runs by going due north at a speed of 4.40 m/s. You move to a different place on the course and twelve minutes after you saw her the first time, your friend runs past you again. This time she is traveling at a speed of 3.80 m/s in the direction 30.0° W of S. What is the direction of her average acceleration between those same two times?During a lecture demonstration, a professor places two coins on the edge of a table 1.3m above the floor. She then flicks one of the coins horizontally off the table so it is moving at 5.0 m/s horizontally when it leaves the table. Simultaneously she gently nudges the other coin over the edge. Which coin hits the floor first? a. The coin gently nudged over the side. b. The coin flicked horizontally. c. They hit the floor at the same time.
- You are standing 5.0 meters from a vertical wall that is 5.0 meters high. You throw a small ball at an angle of 50.0° above the horizontal with a speed of 10.0 m/s. If you release the ball 1.5 meters above the ground, has the ball reached the highest point of its trajectory when it impacts the wall? O There is not enough information to answer the question. O No O YesA student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 21.0 m/s. The cliff is h = 38.0 m above a flat horizontal beach, as shown in the figure below. How long after being released does the stone strike the beach below the cliff? With what speed and angle of impact does the stone land? m/s ° below the horizontalA golf ball is driven off a tree that is elevated 10m above fairway. The initial velocity of the ball is 40m/s with an angle of 40° at the horizontal. a. Maximum height? b. Range? c. Velocity of ball when it reaches fairway?