A bicyclist, of mass m (including the mass of the bicycle), is pedaling to the right, generating a force F. She is experiencing a drag, of magnitude D, and negligible rolling friction. Determine her acceleration, a, in each of the following cases. m [kg] F [N] D [N] a [m/s?] 70 290 35 140 290 35 70 580 35 70 290 70
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- A 7.00 kg object has the given x and y acceleration components. 4 (o51)- (0.73) (107) (079) az = ay 0.79 What is the magnitude Fnet of the net force acting on the object at time i = 4.47 s? Fet What is the angle 0 of the net force at this same time? Give your answer as a number of degrees counter-clockwise from the +x-аxis. IImoodle.nct.eduom/mod/qi -Learning Portal Courses - Reports - e-Services- Academic Departments - ETC - CIMS - A 17kg crate resting on a horizontal surface is pushed as shown. If the coefficient of static friction u, between the surfaces is 0.24, what is the minimum force (F) required to start the motion? O a 4.08N O b. 70.83N Oc 39.98N Od. 694.17N Windows buut An object of mass Skg is sliding with a constant velocity of 10m/s on a frcitionless horizontal table. The force needed to keep the object moving with the same velocity is. 144 4- # 4. 6. V.9:58 PM Sun Feb 27 blackboard.albany.edu A 令74% O exactly as strong as the force of gravity on a 3-kg mass QUESTION 3 1 points A rocket is launched vertically from the Earth, and the thrust (pushing force) from the engines is directed upward, and has a magnitude of 5.00 x 106 N. The mass of the rocket is initially 2.00 x 10° kg. What is the initial acceleration of the rocket, assuming you can neglect air resistance? 25.0 m/s? 15.2 m/s2 O 7.6 m/s? 50.0 m/s2 1 points QUESTION 4 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Sa Save All Answers
- If the rocket sled starts with only onw rocket burning, what is the magnitute of its acceleration. Assume that the mass of the system is 2.50x10^3 kg, the thrust F=2.10x10^4N and the force of friction opposing the motion is known to be f=665N. a. What is the magnitude of its acceleration?Rectilinear Motion A 75 kg man stands on a spring scale in an elevator. During the first 3 secs of motion from rest, the tension T in the hoisting cable is 8300N. Find the reading R of the scale in N during this interval and the upward velocity v of the elevator at the end of the 3secs. The total mass of the elevator, man, and scale is 750kg. Ans. 830 N & 3.77m/s 2. T = 8300 N 1+ 750(9.81)=7360 N R 75(9.81)= 736 NA 15 kg block is observed to be speeding up as it moves up an incline. The magnitude of the block's acceleration is 1.2 m/s 2 . The angle of the incline is 24 o above the horizontal. An applied force is predominantly directed up the incline but its direction is 12o above the incline itself Find the magnitudes of the following forces: a. The normal force exerted by the incline. b. The applied force. Needs Complete typed solution with 100 % accuracy.
- Please answer it within 30 minutes.I will upvote! Problem: A car of mass 822 kg is traveling 25.9 m/s when the driver-applies the brabss, which lock the wheels. The car skids for 6.07s in the positive x direction before corming to rest. (a) What is the car acceleration in (m/s2)? Indicate the direction with the sign of the answer. (b) What magnitude force (in N) acted on the car during this time? (c) How far (in m) did the car travel?On 24 November 2021 the DART (Double Asteroid Redirection Test) spacecraft was launched. Its mission is to assess the ability of an impact to deflect the path of an asteroid. DART was launched on a Falcon 9 rocket. At launch a Falcon rocket has a mass of 555 000 kg and generates a force of 7.6 x 106 N. A. Neglecting the effect of gravity, what is the initial acceleration of the rocket? Give your answer to an appropriate number of significant figures. B. Assuming that the initial acceleration remains constant, how fast will the rocket be moving after 2 seconds? C. In practice, as the rocket burns fuel, its mass decreases. Assuming the thrust remains the same, how would your answer to part (ii) change? Would the speed after 2 seconds be lower, the same or higher?13 m. Four weights, of masses m1 = 3.00 kg, m2 = 1.00 kg, m3 = 4.00 kg, m4 = 2.00 kg, are hanging from the ceiling as shown. They are connected to each other with ropes. The tension in the rope connecting the masses m1 and m2 is * O 184 N. 98.1 N. 68.7 N. 58.9N.