MCQ 1. noitenimeZ At1=0, a particle is located at x = 25 m and has a velocity of 15 m/s in the positive x direction. The acceleration of the particle varies with time as shown in the diagram. What is the velocity of the particle at 1=5.0 s? 60 5.0 4.0 3.0 10 0, (m/s²) 0 0 10 20 30 4.0 5.0 6.0 t(s) a. +15 m/s b. -15 m/s c. +30 m/s d. 0 e. -1.2 m/s lent
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- The position of a particle moving along the x axis is given by x= (21 + 22t - 5.0t?)m , where tis in s. What is the average velocity during the time interval t= 1.0 s to t=3.0 s? O a. 14 m/s О b. 10 m/s О с. 2 m/s O d. 18 m/s O e. 6 m/sQ1.An electron, in a picture tube of a TV set, travelling in a straight line, accelerates uniformly from speed 4.3x10^4 to 9.0x10^6 m/s along a lenght of 2.3 cm. (15) a. How much time does the electron spend in this 2 cm region? b. What is the magnitude of the electron's acceleration?4. A robotic vehicle is exploring the surface of Mars. The robot, which is represented as a point, has x - and y-coordinates that vary with time: x = (3 − 2t); y = (-t² + 4t³) where x and y are in meters and t is in seconds. a. Find the average velocity of the robot between t = 0s and t = 2s. b. Find the average acceleration of the robot between t = 0s and t = 2s. c. At what time the acceleration of the robot will be zero. a. Vavg= -21 + 14ĵ m/s b. davg = 22ĵ C. m s² 2 t = = = 0.083 s 24
- Please help me ho can I sovle this question?Problem 3: You throw an object up with a speed of voy = 7 m/s from a height of y = 25 m. %3D Part (a) How long, in seconds, does it take for the object to reach the ground? Numeric : A numeric value is expected and not an expression. %3DA particle travels along the +x axis. At t = 0 s, its velocity is 10.0 m/s and its acceleration is -2.0 m/s^2. Question A: Which of the following statements is true? 1. The particle will slow down and eventually come to a complete stop 2. The particle cannot have a negative acceleration and be moving in the positive x direction 3. The particle will continue to move in the positive x direction, slowing but never coming to a complete stop. 4. The particle will slow down, stop momentarily, then speed up in the x- direction. Question B: At what time will the particle be stopped? 1. t = 5.0 s 2. t = -5.0 s 3. t = -0.2 s 4. The particle does not ever stop Question C: What is the particle's displacement from its initial position at t = 10.0 s ? Please Answer questions A, B, and C
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