1.46 ** in which a frictionless puck is slid straight across a rotating turntable through the center O. (a) Write down the polar coordinates r, p of the puck as functions of time, as measured in the inertial frame S of an observer on the ground. (Assume that the puck was launched along the axis ¢ = 0 at t = 0.) (b) Now write down the polar coordinates r', o' of the puck as measured by an observer (frame S') at rest on the turntable. (Choose these coordinates so that o and o' coincide at t = 0.) Describe and sketch the path seen by this second observer. Is the frame S' inertial?

1. Fig. 1 Shows an aerofoil cutting mechanism which has a laser cutting device located at point E - the path traced out by this point corresponds to the required aerofoil shape. The laser device can be considered as a point mass of 20kg at E. The other links can be assumed massless and you can ignore forces due to gravity in your analysis. The crank CD is driven at a constant angular velocity, wo, If = 10 rad/s show that in the position shown the x and y components of acceleration at point E are respectively: fex = 178.4 m/s² (to the right); fey = 30.6 m/s² (upwards): (a) (i) Hence, determine the force acting on link EBC at B due to link AB (FB) (ii) Show by means of clearance diagrams the direction of the forces at B and A (b) (c) (d) Determine the X and Y components of the force acting on link EBC at C due to the crank (Fcx, Fcy) Determine the torque, T, input or output due to the acceleration of the laser device at this instant. Determine the resultant force acting on the bearing at…

A shaft is rotating at a uniform speed with four masses mı, m2, m3 and m4 of magnitudes 300 kg, 450kg, 360kg and 390 kg respectively. The masses are rotating in the same plane. The corresponding radii of rotation are 200mm, 150mm, 250mm and 300mm. The angles made by these masses with respect to horizontal are 0°, 45º, 120° and 255° respectively. 1) Check the magnitude and position of balance mass if it radius of rotation is 200mm, and 2) Evaluate the effect of adding the balance mass to the system.

part d and e please

1. The wheel starts rotating from rest, 3) if its angular velocity W as a function of angular position is w=0.2-0², where is in radian, and its radius ris 0.2 m, what is the magnitude of the tangential linear acceleration (in m/s²) of point P after the wheel has turned 1.4 revolution(s) from rest. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Your Answer: Answer P

Can you solve this in 30 mins? Specify your answer if others.

1. The wheel starts rotating from rest, is w=0.1.0², where 1) if its angular velocity W as a function of angular position is in radian, and its radius ris 0.2 m, what is the magnitude of the linear velocity of point Pafter the wheel has turned 1.5 revolution(s) from rest. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point and proper unit. Your Answer: Answer P units

In a manufacturing process, a large, cylindrical roller is used to flatten material fed beneath it. The diameter of the roller is 7.00 m, and, while being driven into rotation around a fixed axis, its angular position is expressed as 0 = 2.10t? - 0.800r where 0 is in radians and t is in seconds. (a) Find the maximum angular speed of the roller. rad/s (b) What is the maximum tangential speed of a point on the rim of the roller? m/s (c) At what time t should the driving force be removed from the roller so that the roller does not reverse its direction of rotation? |s (d) Through how many rotations has the roller turned between t = 0 and the time found in part (c)? | rotations

1. The wheel starts rotating from rest, 5) if its angular velocity W as a function of angular position is w=0.2-0², where 0 is in radian, and its radius ris 0.3 m, what is the magnitude of the total linear acceleration (in m/s2) of point P after the wheel has turned 1.4 revolution(s) from rest. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Your Answer: Answer P

(4) 1 A model car is moving with the angle Find, at t= 1.55= on a circular track of radius r = 208m₁ (in degrees) given by the formula shown above. (b) the car's velocity (my and direc) (c) the car's acceleration (mag and direc) r = 208 m (a) the car's position (ie, the angle 0); draw an accurate diago ram Showing the car in this position. Keep in mind that measured in radians (0 = 0 (t) = 60t - £² (6: degrees to seconds) many of the formulas we've discussed require I to be