69. •A locomotive pulls 10 identical freight cars. The force between the locomotive and the first car is 100,000 N and the acceleration of the train is 2 m/s. There is no friction to consider. Find the force between the ninth and tenth cars. SSM
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- 36-38Hello, I would need help with this problem.• An object of mass 2kg is attached to the hooks of a spring balance and the later is suspended vertically from the roof of a lift. What is the reading on the spring balance when the lift is a. Ascending with an acceleration of 0.2m/s² b. Descending with an acceleration of 0.1m/s² Ascending with uniform velocity of 0.15m/s Take g as 10m/s²
- 35. • In Figure 6-23 we see two blocks connected by a string and tied to a wall. The mass of the lower block is 1.0 kg; the mass of the upper block is 2.0 kg. Given that the angle of the incline is 1.0 kg O 2.O kg 31 A FIGURE 6-23 Problem 3542• A 6kg block rests on a smooth table. It is connected by a string of negligible mass to a block hanging over the end of the table. Assuming motion is downwards, Find i. The acceleration of each block(2.5m/s²) ii. The tension in the connecting string(14.7N) iii. The position of mass of A after 0.4 second iv. The velocity of mass A at 0.4 seconds (0.98m/s)
- •When two people push in the same direction on an object ofmass m they cause an acceleration of magnitude a1. When thesame people push in opposite directions, the acceleration of theobject has a magnitude a2. Determine the magnitude of the forceexerted by each of the two people in terms of m, a1, and a2.14- The friction-neutral inclined plane has a height of 20 m. If an object thrown from the highest point of the inclined plane with a velocity of 10 m/s passes through the lowest point of the inclined plane with the velocity Vs, how many m/s is Vs? A) 10,73 B) 25,76 C) 22,2 D) 15,7 E) 28,14Three forces acting on an object are given by ₁ = (-1.91 + 5.80ĵ) N, F₂ = (4.95î – 1.25ĵ) N, and F3 = (-40.51) N. The 2 object experiences an acceleration of magnitude 3.95 m/s². (a) What is the direction of the acceleration? • (counterclockwise from the +x-axis) (b) What is the mass of the object? kg (c) If the object is initially at rest, what is its speed after 14.0 s? m/s (d) What are the velocity components of the object after 14.0 s? (Let the velocity be denoted by V.) Î + ₁) m/s