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- A particle travels m a circular orbit of radius 10 m. Its speed is changing at a rate of 15.0m/s2 at an instant when its speed is 40.0 m/s. What is the magnitude of the acceleration of the particle?vector e, in the n- direction and the unit vector e; in the t direction, the acceleration can be expressed in terms of velocity, v, the radius of curvature of the curvilinear path, p and the time derivative of the velocity, as: In the description of plane curvilinear motion using coordinates n normal to the path and t tangent to the path of motion with unit O a = e, + ve, O a = O e, + ve, O a = (pv² )e, + =()e, + ve,Kinematics 2: Motion in 2-Dimensions and ons 19. An object is moving in a uniform circular motion. True or False? The linear velocity of the object is constant. 25. An 20. An object is moving in a uniform circular motion. True or False? The centripetal accelerationn is equal to-g. ur re 21 An object is moving in a uniform circular motion. True or False? The direction of the centripetal acceleration is always towards the center 26 22. An object is moving in a uniform circular motion. True or False? rad/s is a unit of angular frequency.
- 1110. 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 cyclist goes round a circular track, of radius 10 m, at a constant speed of 8.0 m s-1.What is the acceleration of the cyclist and what is its direction?Dingdong and Marian moves with constant speed while riding a merry-go round with a radius of 6.00m radius, making a complete circle in 5.00 s. What is their acceleration?
- A car travels at a constants speed of 100kph when its initial position is 400m measured horizontally and whose vertical terrain is given by the equation y 0.0003x? a. Compute the radius cof curvature at its initial position b. Find the total acceleration of the car if the position of the car is 200m from its initial position.A girl on a bike takes 15 seconds to ride halfway aound a circular track of a radius=10. What is her average speed and magnitude of average velocity?037. A fishing sinker on a string revolves in a circle of radius 1.00 m with a constant speed of 2.75 m/s. What is its cen- tripetal acceleration?
- Question 6: A particle is moving in a circular path of radius R. At some in- stant, its acceleration a makes angle 0 with the horizontal as shown in Figure 2. At that instant, what is the speed of the particle? R Figure 2 Select one: O VaRsin O VaRsin? 0 VaR cos 0 GRcot A.9. A particle moves at a constant speed in a circular path with a radius of 2.06 cm. If the particle makes four revolutions each second, what is the magnitude of its acceleration? C. 13 m/s D. 15 m/s A. 20 m/s B. 18 m/s O A OD O Bmoves with constant soeed wile riding a merry-goround with a radius of 6.00 m, complete a corc;e in 5s. what is acceleration in m/s2