*35. "In a historical movie, two knights on horseback start from rest 88.0 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.300 m/s², while Sir Alfred's has a magnitude of 0.200 m/s². Relative to Sir George's starting point, where do the knights collide?
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- 9. In the physics lab students fire a ball from the projectile launcher with a velocity of 6.00 m/s @< 25⁰. (a) What is V, and Vy in 0.380 s? Dub) Is the ball going up and direction of the balls? Why? (c) What is the magnitude and direction of the balls actual velocity at this time? range CORE BEXAs you walk briskly down the street, you tossa small ball into the air. (a) If you want the ball to land in your handwhen it comes back down, should you toss the ball straight upward,in a forward direction, or in a backward direction, relative to yourbody? (b) Choose the best explanation from among the following:I. If the ball is thrown straight up you will leave it behind.II. You have to throw the ball in the direction you are walking.III. The ball moves in the forward direction with your walkingspeed at all times.MY NOTES ASK YOUR TEACHER A projectile is launched with an initial speed of 929 m/s. Additionally, Viy= 129 m/s & Vix-920 m/s. Impact occurs at the same altitude it was launched at. Determine the following values for the projectile at impact. Take up to be positive. Ary=
- A sandal is dropped from the top of a 13 m-high mast on a ship moving at 1.75 m/s due south. a)Calculate the magnitude of the velocity, in m/s, of the sandal when it hits the deck of the ship relative to the ship straight down. b)Calculate the magnitude of the velocity, relative to the shore, with which the sandal hits the deck of the ship. Give your answer in m/s. c)The velocity, relative to the shore, with which the sandal hits the deck makes an angle with a horizontal line directed straight to the south. Calculate this angle, in degrees.A seagull flies at a velocity of 9.5 m/s relative to the air straight into the wind. vSA = 9.5 m/st = 24 mind = 5.6 km a)If it takes the bird 24 min to travel 5.6 km relative to the Earth, what is the velocity of the wind, in meters per second, relative to the Earth? Take the direction of travel of the seagull to be positive. b) If the bird turns around and flies with the wind, how long, in minutes, will it take to return 5.6 km?3:55 P M A 46 ul = bartleby Search for textbooks, step-by.. Q&A Science / Advanced Phys... / Q&A Libr... | A bullet ( (2 cm long is fired at 420 m/s... A bullet ( (2 cm long is fired at 420 m/s and passes straight throu... Question :A bullet ( (2 cm long is fired at 420 m/s and passes straight through a 10 cm thick wooden-board, penetrate ( (at 280 m/s. (a) What is the average acceleration of the bullet through the board? (b) What is the total time that the bullet is in contact with the board? (c) What minimum thickness could the board have if it was supposed the bullet? Q2: A bullet (ásiy dualua ) 2 cm long is fired at 420 m/s and passes straight through a 10 cm thick wooden-board, penetrate () at 280 m/s. Bullet wooden -board (a) What is the average acceleration of the bullet through the board? (b) What is the total time that the bullet is in contact with the board? (c) What minimum thickness could the board have if it was supposed the bullet? II
- A truck loaded with cannonball watermelons stops suddenly to avoid running over the edge of a washed-out bridge (Fig. P3.74). The quick stop causes a number of melons to fly off the truck. One melon rolls over the edge with an initial speed i = 10.0 m/s in the horizontal direction. A cross section of the bank has the shape of the bottom half of a parabola with its vertex at the edge of the road, and with the equation y2 = (16.0 m) x, where x and y are measured in meters. What are the x- and y-coordinates of the melon when it splatters on the bank? Figure P3.74 The blue dashed curve shows the parabolic shape of the bank.1. Mt Taal is one of the most active volcanoes in the Philippines and active volcanoes normally emit red-hot rocks and lava rather than smoke and ash. Believe a huge rock is emitted from the volcano with a speed of 30.0 m/s and at an angle 40 above the horizontal. The rock strikes the side of the volcano at an altitude 25.0 m lower than its starting point. (a) Calculate the time it takes the rock to follow this path. (b) What are the magnitude and direction of the rock's velocity at impact?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.
- 3. A man can swim at 5 ft/s in still water. He wishes to cross the 40-ft-wide river to point B, 30 ft downstream. If the river flows with a velocity of 2 ft/s, determine the speed of the man and time needed to make the crossing. While in the water, he must not direct himself toward point B to reach this point. Why? -30 ft 40 ft v, = 2 ft/s A1. An old-fashioned physics dilemma used to be - if a sailor in the crow's net (a place way up high in the rigging) of a sailing ship that was moving at a constant speed dropped a tool onto the deck of the ship, would it land directly beneath where he dropped it or since the ship was moving, would it land further back? Explain.V:EE IAr O O MOEO O 40all OMANTEL B/s Two stones A and B are thrown الوقت المتبقی 0:28:42 aneously from the two buildings of height 10 m and 20 m, respectively as shown below. Stone A is thrown with an initial speed of 10v2 m/s at an angle of 45 degrees with horizontal, while stone B is thrown horizontally with speed 10 m/s.lf they hit each other in air at t = 1s, then the distance d between the :buildings is 10m/s 10V2m/s 45° 20m 10m إختر أحد الخيارات m 7.0 a m 20 .b m 15 .c m 3.0 d