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the speed of train is reduced from 60 km/hr at the same time as it travels a distance of 450 m. if the retardation is uniform,find how much further it will travel (approx) before coming to rest?

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the velocity of a body moving in straight line with a constant acceleration is 10 m/s at a certain instant "t". After 5 secs the velocity becomes 20 m/s, the velocity 3 secs before t was?

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If a boat can motor 2.3 m/s in still water, and it attempts to cross a river with a current of 1.5 m/s, what will be the boat's velocity relative to the shore?

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Jake walks east through a passenger car on a train that moves 10 m/s in the same direction. Jake’s speed relative to the car is 2 m/s. Jake’s speed relative to an observer at rest outside the train is?

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Sally travels by car from one city to another. She drives for 29.0 min at 52.0 km/h, 31.0 min at 30.0 km/h, and 27.0 min at 56.0 km/h, and she spends 10.0 min eating lunch and buying gas.

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Parachutists bend their legs and roll with the fall on landing. They do this to reduce the chance of injury. Explain why this technique means that they are less likely to suffer broken bones on hitting the ground?

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A spring (k = 764 N/m) is attached to the ceiling of an elevator. How much will the spring stretch (relative to its unstretched length), if a 6.6 kg object is attached to the lower end and the elevator is accelerating downward at 0.41 m/s2?

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If a right angled triangle label A B C and A=3 B=4 what is C equal to

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The length of each side of a cube measured with verier callipers is 30mm.If the venier callipers can be read with an uncertainty of ±0 14 mm, what does this give for approximate uncertainty in the value of its volume

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The speed of a train is reduced from 60km/h at the same time as it travel a distance of 450 m.if the retardation is uniform find how much further it will travel before coming to rest

Answered! |