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A satellite will travel indefinitely in a circular orbit around the earth if the normal component of its acceleration is equal to
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Vector Mechanics for Engineers: Dynamics
- Write the vector expression for the acceleration a of the mass center G of the simple pendulum in both n-t and x-y coordinates for the instant when 8 = 65° if 0 = 2.47 rad/sec and 0 = 3.625 rad/sec². Answers: a = ( i a=i XIII 3.7' mn 8 en + i+ i i et) ft/sec² j) ft/sec²arrow_forwardAt a certain point in the reentry of the space shuttle into the earth's atmosphere, the total acceleration of the shuttle may be represented by two components. One component is the gravitational acceleration g = 9.67 m/s² at this altitude. The second component equals 10.66 m/s² due to atmospheric resistance and is directed opposite to the velocity. The shuttle is at an altitude of 49.6 km and has reduced its orbital velocity of 28300 km/h to 16160 km/h in the direction = 1.23°. For this instant, calculate the radius of curvature of the path and the rate i at which the speed is changing. Answers: p= i = i i km m/s²arrow_forwardThe question is attached as an image. Thanksarrow_forward
- A satellite is in a circular orbit around Mars. It has a constant altitude and constant speed. The acceleration of the satellite is: tangential - direction opposite to the velocity radial - directed towards Mars O radial - directed away from Mars tangential - along the velocity zeroarrow_forwardWhat’s the correct answer for this and why ? Thank youarrow_forwardA girl operates a radio-controlled model car in a vacant parking lot. The girl’s position is at the origin of the xy coordinate axes, and the surface of the parking lot lies in the x-y plane. She drives the car in a straight line so that the x coordinate is defined by the relation x(t) = 0.5t3 - 3t2 + 3t2 + 3t + 2, where x and t are expressed in meters and seconds, respectively. Determine (a) when the velocity is zero, (b) the position and total distance travelled when the acceleration is zero.arrow_forward
- help me with this please,thanksarrow_forwardThe robotic arm shown in figure below is programmed to move 0.5 kg sphere A in a vertical plane. The path of sphere A can be defined using the functions r = 0.5t − 0.5 cos(2πt) m and θ = 0.5 −0.2 sin(2πt) rad. At t = 2 s, determine a) Radial and transverse components of the force exerted on A by the robot’ jawsarrow_forwardAn artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 9.791 m/s². Determine the orbitql period of the satellite? Your answer should be a unit of time.arrow_forward
- This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A motorist starts from rest at Point A on a circular entrance ramp when t = 0, increases the speed of her automobile at a constant rate and enters the highway at Point B. Her speed continues to increase at the same rate until it reaches 85 km/h at Point C. Determine the speed at Point B. (You must provide an answer before moving on to the next part.) The speed at Point B is km/h. Note: please show step by step solution. Hence, double check the solution. For correction purposes!. I require handwritten working out please!. Kindly, please meticulously, check the image for conceptual understanding and for extra information purposes!. Also on occasions, I receive wrong answers!!. Please go through the question and working out step by step when you finish them. Appreciate your time!.arrow_forwardAriana Grande and Taylor Swift rides on the cart box A and B respectively as shown below. The combined weight of Ariana and the cart box A is 250 lbs and the combined weight of Taylor and the cart box B is 650 lbs. The velocity attained of Taylor Swift and Ariana Grande after cart box A moves a distance of 16 ft starting from rest is m/s and m/s respectively. 250# 650# 4 Mk= 0.20 3 2.arrow_forwardQuestion 2: For a 1-kg ball being pushed by a rod in the vertical path with equation r = 0.50, where is in radian and r is in meter. At the instant shown, if it has = 2 rad/s and = 4 rad/s², determine its acceleration. (a) 1.14 m/s² (b) 7.05 m/s² (c) 7.14 m/s²2 (d) 7.23 m/s² r II π 2arrow_forward
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