Determine the magnitude of the acceleration of the center of mass of the system. Give your answer to two significant figures. E1% $2
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- Determine location of the center of mass of steel sheet that is shaped as shown below. Give your answer in the form (xCM; YCM), where xCM and ycm are in cm, to one decimal place. у (ст) 3L 2L IL x (cm) IL 2L 3LPROBLEMI The 260kg crate shown in the figure rests on a horizontal surface for which the coefficient of kinetic friction is 025. If the crate is subjected to a 400 N towing force as shown determine the velocity of the crate in 5 s starting from rest PROBLEM 2 PROBLEM 3 The 80 kg block A shown in Figure is released from rest If the masses of the puleys and the cord are neglected determine the speed of the 12 kg block B in 38 m₁ P = 400 N IIA 8 = 30° 30° Consider the masses m, 20 kg and m, 18 kg in the system represented by the figure below. If the coefficient of friction is Of and the inclination angle is 30°, find the acceleration of the system and the tension in the cord joining two masses Datum m₂The automobile has a mass of 2.2 Mg and center of mass at G. Take u, = 0.3. (Figure 1) Part A Determine the towing force F required to move the car if the back brakes are locked, and the front wheels are free to roll. Express your answer to three significant figures and include the appropriate units. HA ? F = Value Units Submit Request Answer Provide Feedback Figure 1 of 1 G. 0.6 m 0.3 m B A 1m-1.50 m- 0.75 m
- The question below refers to a collision between a car and a truck. Choose the one answer from the possibilities A though J that best describes the forces between the car and the truck during a collision described below: The car is moving much faster than the heavier truck when they collide. Which choice describes the forces? Assume that the truck is much heavier than the car. A. The truck exerts a greater amount of force on the car than the car exerts on the truck. B. The car exerts a greater amount of force on the truck than the truck exerts on the car. C. Neither exerts a force on the other; the car gets smashed simply because it is in the way of the truck D. The truck exerts a force on the car but the car doesn't exert a force on the truck. E. The truck exerts the same amount of force on the car as the car exerts on the truck. F. Not enough information is given to pick one of the answers above. G. None of the answers above describes the situation correctly. OA OD OE e OG MOMENTUM…Policies Current Attempt in Progress A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 93.2 kg. The mass of the rock is 0.315 kg. Initially the wagon is rolling forward at a speed of 0.456 m/s. Then the person throws the rock with a speed of 16.6 m/s. Both speeds are relative to the ground. Find the speed of the wagon after the rock is thrown (a) directly forward in one case and (b) directly backward in another. (a) v = i (b) v = i eTextbooks