Question 15 dart is thrown with an initial velocity of 10.0 m/s at an angle of 60.0° above the horizontal. If air resistance nd wind are neglected, the horizontal position of the dart after t = 4.00 s is O 15.0 m O 10.0 m 25.0 m O 20.0 m
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- A golf ball is driven with the initial conditions shown in the figure. If the wind imparts a constant horizontal deceleration of 3.1 ft/sec², determine the values of r,r,r,0,0, and when t - 1.07 sec. Take the r-coordinate to be measured from the origin. Answers: r- 7 ! 0- 0- 0- i i i i i i 129 mi/hr 80 = 27° ft ft/sec ft/sec² rad/sec Wind rad/sec²Sto SKILL LEVEL: To be determined An arrow is fired downward at an angle of 45 degrees from the top of a cliff with a velocity of 60.0 m/s. How far from the base of the cliff will the arrow land if it is in the air for 3 seconds before striking the ground? a 115 m b 127 m C 135 m Check itA high jumper leaves the ground with an initial velocity of 11.1 m/s rightward at an angle of 17°. What is the high jumper's initial horizontal velocity, in m/s? Answer: m/s
- A ball is thrown upwards with a speed of 7.00 m/s at an angle of 50.0° from the positive x axis. What is the vertical component of the ball's initial velocity (Voy)? O m/s 7.00 m/s 5.36 m/s 4.50 m/sA golf ball leaves the ground with an initial velocity vo = voxî + vovĵ. The ball hits a vertical wall which is located a horizontal distance b from the point of projection. When the ball strikes the wall, it is at a height h above the ground and it is moving horizontally. Which of the following choices correctly relates the ratio h/b to the components (vox , Voy) of the initial velocity. FL Vo hA football is kicked from ground level with an initial velocity of 23.6 m/s at angle of 53.0° above the horizontal. How long, in seconds, is the football in the air before it hits the ground? Ignore air resistance. S
- A student launches a physics textbook out of a cannon. For maximum distance, they launch it at a 45° angle, with an initial speed of vị = 80 m/s. If it starts from ground level, how high is the textbook when it is 20 m away horizontally from the cannon? Express your answer with the appropriate units. HA h = Value Units Submit Request AnswerZ W X H command 3. A projectile is launched at an angle of 18.0° above the horizontal. What is its initial speed if it hits a target that is located a horizontal distance of 180 m from the launch point and 12.5 m below the launch level? m/s 3 BO E D $ C R F % 5 V T MacBook Air 6 G ES Y B 8 N J M command1110. In Fig. P-1109, a ball thrown down the incline strikes it at a distance s 254.5 It. If the ball rises to a maximum height h 64.4 ft above the point of release, compute its initial velocity vo and inclination 6. Ans. v. = 80.5 ft per see; 0= 53.1° FIG. P-1109 and P-1110.
- A football player punts the ball at a 42.0° angle. Without an effect from the wind, the ball would travel 57.0 m horizontally. (a) What is the initial speed of the ball? m/s (b) When the ball is near its maximum height it experiences a brief gust of wind that reduces its horizontal velocity by 1.50 m/s. What distance does the ball travel horizontally? m Submit QuestionJuan throws a baseball with an initial speed of 40 m/s at an angle of 53 0 above the horizontal. Richard catches the ball at the same height that Juan threw it. How far did Juan throw the ball?3. A projectile is launched off of a 25.0 m high cliff with an initial velocity of 15.0 m/s in a direction that makes a 35.0° angle with the horizontal. a) What distance in the x-direction from its initial location does the object travel in reaching the ground below? b) What is the velocity of the object as it reaches the ground below (magnitude and direction)?