College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:MITS robot cheetah can jump over obstacles 46 cm high and has speed of 12.0 km/h. (a) If the robot launches itself at an angle of
60° at this speed, what is its maximum height? (b) What would the launch angle have to be to reach a height of 46 cm?
A a) 0.43 m b) 65.5 degrees
B a) 0.55 m b) 65.5 degrees
O a) 0.43 m b) 73.4 degrees
D) a) 0.55 m b) 73.4 degrees
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- ull Sprint ? 8:28 AM O O 46% AA Not Secure ptk60.com email, I don't want to see your work for worksheets. You throw a ball on planet X where g is not the same as on Earth. The figure below shows the vertical velocity of the ball after it leaves your hand. Air resistance is not important. 12.0 6.0 60 -12.0 -18.0 1.0 20 3.0 1. Find the gravitational acceleration on planet X. You hit a golf ball into the air with an initial horizontal speed of 20 m/s and an initial vertical upward speed of 48 m/s on planet X. Neglect air resistance. 2. Find the maximum vertical displacement of the ball. 3. Find the horizontal displacement when the ball is at its maximum vertical displacement. 4. Find the speed of the ball when it is at its maximum vertical displacement. A rock is thrown from a 300 m high cliff with an initial horizontal speed of 30 m/s and an initial vertical speed of 0 m/s on Earth. Air resistance is not important. Use g = 10 m/s/s. 5. Find the time it takes the rock to hit the level…arrow_forward#L #f एक mg 3. Find u so the block slides to the right at a constant speed of 2 m/s. ≤ x = 0 8 kg 30° 1201 mg 60 N GON 30° Tx امی 5 Tx-Ff=0 tx-fn=0 +MFn +MFn Tx - Fn Fh Fn a=13.0 m/s²arrow_forwardNewton's Law Law. Which of the following scenarios demonstrates Newton's 2nd Law? O A planet exerts an attractive force on all objects on its surface. O A cyclist is launched forward when the bicycle is stopped by the corner of a side walk. O A person feels a push back when they push on a wall. O A box sliding on the floor slowly comes to a rest due to friction.arrow_forward2arrow_forwardA 10 N of force is applied to a toy car and toy car accelerates to 2m/s^2. If 20 N of the force is applied on the same toy car, the toy car now accelerates to A. 2m/s^2 B. 3m/s^2 C. 4m/s^2 D. 6m/s^2arrow_forward20. A box moves up a slope while being pushed in the direction shown. If there is friction between the box and slope, which of the following is correct? f Conserve Push Energy for box & Earth box moves up so AU= pos Wext = W A) The box gets faster as it moves up the slope. B) The box gets slower as it moves up the slope. C) None of the other choices must be correct. D) The box moves at constant speed. push Михо → push A² TAř| ces F co Push pos. E) The box gets faster but not by as much as if there was no friction. B Деви = fulonl = pos.arrow_forwardA 1500 kg car traveling 30 m/s comes to a stop. The coefficient of friction between the tires and the road is 0.80. What is the acceleration of the car? What is the stopping distance?arrow_forwardSam (75 kg) takes off (from rest) up a 50-m-high, 10° frictionless slope on his jet-powered skis. The skis have a thrust of 200 N. The thrust is turned off at the end of the ramp. How far does Sam land from the base of the cliff? Start 10⁰ 50 m 10⁰arrow_forwardAfter being release from rest, the objects move. When the blocks have moved 1 meter, calculate the speed of the blocks. 2.6 m/s 1.7 m/s 4.4 m/s 2.9 m/s 3.6 m/sarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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