1. Block A in Fig. 2 weighs 1.90 N, and block B weighs 4.20 N. The coefficient of kinetic friction between all surfaces is 0.30 and applied force 𝐹 ⃗⃗⃗ has magnitude of 10N. Block A and block B are connected by a light, flexible cord passing around a fixed, frictionless pulley. (a) Draw a complete free body diagram. (b) Find the acceleration of the block B.

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  2. Fig. 3 shows the top view of a car which has mass 1000 kg. The car is acceleration on a frictionless surface by the three forces as shown in the fig. 3. Find the magnitude and direction of the acceleration of the car.

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  3. MathJax Example