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- What is the average value g we get after we complete the data table? Values are: 10.29 m/s2 9.25 m/s2 8.68 m/s2Question 5 You measure the velocity of falling object at several times given in the table below. Time (s) Velocity (m/s) 0.00 0.08 0.10 1.05 0.20 2.05 0.30 3.03 0.40 3.84 0.50 4.98 0.60 5.78 0.70 6.88 0.80 7.84 0.90 8.73 1.00 9.89 The acceleration is the slope of the fit line. Use the Data Analysis ToolPak in Excel (or any other linear regression tool) to determine the acceleration and its uncertainty from the slope of the fit line and its standard error. O 19.71 + 0.07) m/s? O 9.81 z 0.07) m/s? O0.70.1) m/s (9.75 + 0.04) m/s? (9.80 + 0.01) m/sA car moves along the positive x-axis. The position of the car is given by the equation r = 2.0t4 –3t2 + 10.00t3 +t. Find the acceleration of the car at t = 2.5s. Time is given in seconds and r is in cm. Express your answer in cm/s2.
- A boxer's fist and glove have a mass of m = 1.04 kg. The boxer's fist can obtain a speed of v = 9.25 m/s in a time of t = 0.21 s. Write a symbolic expression for the magnitude of the average acceleration, aave, of the boxer's fist, in terms of the variables provided. Find the magnitude of the average acceleration, aave, in meters per square second. Write an expression for the magnitude of the average net force, Fb, that the boxer must apply to his fist to achieve the given velocity. (Write the expression in terms of m, v and t.) What is the numerical value of Fb, in newtons?Please asapA train accelerates from 100 m/s west to 170 m/s west in 10 seconds. What is the acceleration of the bus? a = Vf – Vi time 7 m/s2 7 m/s2 80 m/s2 280 m/s2 A biker rides 80 meters in 12 seconds. His average speed is ___. (s=d/t) 15 m/s 67 m/s 58 m/s 92 m/s According to Newton’s 3rdLaw of Motion, for every action, there is ___. Work being done An equal and opposite reaction An unbalanced force on the reaction. An equal reaction continuing the direction of motion
- 7. A group of students carried out a constant acceleration motion experiment in which they dropped a cart through an inclined plane and managed to collect the data that appear in table # 1. With the information in table # 1, make the graph of average speed vs. time and from the graph determine the acceleration of the cart. t(s) x(cm) 0.00 0.23 15 0.32 30 0.40 45 0.46 60 0.51 75 0.56 90 0.61 105 0.65 120The acceleration of a rocket is a = -bV, where V is the speed of exhaust gases coming out of the thruster. What are the SI units of b?