2. During a demolition derby, 2 cars are initially facing each other so they will be moving in opposite directions. Thered car accelerates from rest at 3m/s?. The green car, initially moving at 4m/s, accelerates at 1.8 m/s². If theystart 100m from each other, where will they collide? 5.68s at 48.4m3. During a demolition derby, 2 cars are initially facing each other so they will be moving in opposite directions. T3m/s2. The green car, initially moving at

Given: The intial velocity of the red car is 0 m/s, and acceleration is 3 m/s2. The initial velocity…

Answered: 2. During a demolition derby, 2 cars…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A. 53.76 s D. 64.87 s B. 48.63 s E. 65.66 s C. 60.00 s F. 74.72 s 1--1 IXXKI Within the jet stream, a plane flies 200 m/s at 18° South of West. The jet stream itself is moving 120 m/s due North. Find the velocity of the jet relative to the ground. 6. magnitude A. 198.9 m/s B. 163.9 m/s 131.4 m/s 201.5 m/s 266_m/s C. 312.7 m/s 1--1 direction A. 18.5° N of W D. 17.01° N of W B. 23.12° N of W E. 29.54° N of W C. 22.93° N of W F. 33.97° N of W 1--1 IVOLG A river has a 6.5 m/s current due East. With respect to the water, the boat's velocity is 16 m/s at 84° north of east. What is the velocity of the boat relative to the Earth? (State the angle relative to due East.) 8. magnitude 17 99 m/s D 2762 m/s MacBook Pro 7. DEE E.
A person holds a rifle parallel to the ground and fires the rifle at the same moment he drops a bullet from the same height. What happens? Select one: a.The rifle bullet hits the ground first. b.The dropped bullet hits c.Both bullets hit the ground at the same time.
79. 000 A hockey player hits a "slap shot" in practice at a horizontal distance of 15 m from the net (with no goalie present). The net is 1.2 m high, and the puck is initially hit at an angle of 5.0° above the horizontal with a speed of 50 m/s Does the puck make it into the net?
A space probe leaves the solar system to explore interstellar space. Once it is far from any stars, when must it fire its rocket engines? A. only when it wants to slow down B. when it wants to speed up C. all the time, in order to keep moving 19 D. only when it wants to turn E. only when it wants to speed up
1A. You're feeding the fish at the pond by the baseball field and decide to do some physics calculations. You notice that you release the fish food 1.65 m above the surface of the water, and during one throw, when the food left your hand at 3.20 m/s with a direction of 13.0° below the horizon, you managed to hit a fish near the surface. How fast was the food going right before it hits the fish? 1B.Two kittens are running toward each other, one is named Chloe and the other is named Luna. Luna runs at a speed of 1.40 m/s. If Chloe jumps at an angle of 37.0° with speed 2.70 m/s, at what distance from Luna should Chloe jump to make sure she lands on Luna?
A How long is the "x" component of vector A X a. 3 b. 1 C.4 d. 5
49. Given these two velocities, C = (4î +2ĵ -2k̂) m/s and E= (5î -4ĵ +5k̂), find the magnitude of the velocity, v= 2C –E. a. 12.4 m/s b. 17.0 m/s c. 21.0 m/s d. 27.6 m/s
A car is moving with a velocity of 20 m/s making an angle with the horizontal. The x- component of the velocity (horizontal velocity) could be O a. 15 m/s O b. 100 m/s C. 34 m/s O d. 21 m/s
85. A plane travels N30°W at 450 mph and encounters a wind blowing due west at 30 mph. (See Example 9) a. Express the velocity of the plane v, relative to the air in terms of i and j. b. Express the velocity of the wind vw in terms of i and j. c. Express the true velocity of the plane v, in terms of i and j and find the true speed of the plane.
1. Disregarding the ball's dimensions, calculate the magnitude Va of the initial velocity of the basketball and its velocity as it goes through the basket. A. How does neglecting the size of the ball affect the determination of the basketball's initial velocity? B. Can other factors, such as air resistance or spin, also be neglected when determining the magnitude of the basketball's initial velocity and its velocity through the basket?
A small ball rolls horizontally off the edge of a tabletop that is 1.50 m high. It strikes the floor at a point 1.52 m horizontally from the table edge. How long is the ball in the air in seconds? Lütfen birini seçin: O A. 0.495 O B. 0.602 O C. 0.553 O D. 0.426 O E. 0.587
4. 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?

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