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Acceleration over part A = change in velocity/time taken = 5/7 = 0.714 m/s2. © D.J.DUNN 5 SELF ASSESSMENT EXERCISE No.2 1. A vehicle travelling at 1.5 m/s suddenly accelerates uniformly to 5 m/s in 30 seconds. Calculate the acceleration, the average velocity and distance travelled. (Answers 0.117 m/s2, 3.25 m/s and 97.5 m) 2. A train travelling at 60 km/h decelerates uniformly to rest at a rate of 2 m/s2. Calculate the time and distance taken to stop. (Answers 8.33 s and 69

of their resultant (1) decreases (2) increases (3) remains the same 2. A car increases its speed from 9.6 m/s to 11.2 m/s in 4.0 s. The average acceleration of the car during this 4.0-second interval is (1) 0.40 m/s2 (3) 2.8 m/s2 (2) 2.4 m/s2 (4) 5.2 m/s2 3. What is the speed of a 2.5-kilogram mass after it has fallen freely from rest through a distance of 12 m? (1) 4.8 m/s (3) 30. m/s (2) 15 m/s (4) 43 m/s 4. A machine launches a tennis ball at an angle of 25° above

extremely similar to each other. Data and Analysis: Data: Table 1: The Angular Acceleration of No Ring and Ring Trial No Ring Ring 5g 4.57 ± 0.005 rad/s2 1.32 ± 0.005 rad/s2 10g 13.16 ± 0.005 rad/s2 3.09 ± 0.005 rad/s2 15g 20.45 ± 0.005 rad/s2 4.83 ± 0.005 rad/s2 20g 27.89 ± 0.005 rad/s2 6.60 ± 0.005 rad/s2 25g 35.65 ± 0.005 rad/s2 8.35 ± 0.005 rad/s2 Table 2: The Average Experimental and Theoretical Moment of Inertia for No

Hypothesis: In the world of force, when Physicists are talking about apply forces, the relationship between mass and acceleration has been attractive for long. Although Sir Isaac Newton has already solved this problem centuries ago, it is still crucial to perform an experiment to prove this relationship to enhance one’s understanding in force. In order to pursue accuracy and objection in the lab, one assumes that he has no knowledge about Newton’s Second Law. Begins from daily life, it is a common

[(a) 1.7 m/s2, 17 N, (b) 0.69 7 m/s2, 17 N] 10. A block of mass m = 5.8 kg is pulled up a ( = 25° incline as in figure with a force of magnitude F = 32 N. (a) Find the acceleration of the block if the incline is frictionless. (b) Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.10. [(a) 1.4 m/s2, (b) 0.49 m/s2] 11. A 276-kg glider is being pulled by a 1950-kg airplane

Inmate Kautz (S1) then pulls Inmate Brodsky (V1) by the back of his shirt in an attempt to choke him. At 1856 hours, Inmate Martin, Jason T331825 (S2) then steps in front of the camera view as Inmate Kautz (S1) again pulls on the back of Inmate Brodsky (V1) shirt in an attempt to choke him and pin him against the table again while Inmate Martin (S2) talked to him. Seconds later Inmate Kautz (S1) releases Inmate Brodsky (V1) and he walked to the restroom and took off his shirt. During that time

SPOT WELD ANALYSIS OF AN AUTOMOBILE RIM Susheel S.Pote1, Prof.R.A.Kathar2, R.B.Patil3, Nilesh Phalke4 1P.G. Student, 2 Associate Professor - J.N.E.C, Aurangabad, 3,4, Klassic Wheels Pvt. Ltd.Ahmednagar, Maharashtra, India Abstract In this thesis the Optimization of Number of Spot welds on Automobile Wheel Rim using Finite Element Analysis is studied. Spot welded rim must pass certain tests like Weld Strength Test (WST), Dynamic Cornering Fatigue Test (DCFT) and Radial Fatigue Test (RFT). In Weld

between PC1 and PC4. Answer: PC1 is on VLAN 30 instead of VLAN 10. The G1/1 port on S1 is configured as an access port. b. Record the necessary actions to correct the issues. Answer: Issue the switchport access vlan 10 command on F0/11 interface on S2. Issue the switchport mode trunk command on G1/1 interfaces for S1 and

an average rate of 17.7 cm/s2. When the ramp was 15 cm high, between 0 and 30 cm the car accelerated at a rate of 37 cm/s2. At 10 cm high, between 30 and 60 cm the car accelerated at a rate of 4.2 cm/s2 . At 15 cm high, between 30 and 60 cm, the toy car accelerated at an average rate of 7.9 cm/s2 . Lastly, at 10 cm, the car accelerated at a rate of 23.8 cm/s2 between 60 and 90 cm. When the ramp was 15 cm high, between 60 and 90 cm the car accelerated ata rate of cm/s2 . The data clearly shows a

coefficient of friction between the sled and the surface supporting it.  The Experiment  The mass of the wagon (M) and the hanging mass (m) are in kilograms. The total mass of the system is Mt, the sum of M and m. The acceleration of gravity (g) is 9.8 m/s2 . The acceleration of the system (a) varies, depending upon the experimental values of M, m, and µ. In the situation shown above (μ = 0), the only force acting on the system is the weight of the hanging mass, Wm. Fill in the following table, using