your way back from the lake, you’re worst friend is driving and trying to post some stupid selfies to Instagram. Just then, you look up to see a train approaching the crossing near the Roadhouse Grill travelling at 30 m/s, 60 m from the train crossing. You’re traveling 20 m/s at a distance of 45 m away and your “friend” decides (foolishly) to punch it and try to beat the train. If his reaction time is half a second, what minimum acceleration does the car need to avoid certain

Q: A cruise ship sails due north at 4.50 m/s while a Coast Guardpatrol boat heads 45.0° north of west…

A: Given:Velocity of ship = 4.50 m/s (north)Velocity of boat head = 45o north of west at 5.20 m/s

Q: O A stone is thrown vertically upwards at 24.5 on the level with but just beyond cliff ledge. It's…

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A: Projectile motion is the motion in which a particle is thrown at specific angle and specific…

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Q: A student is walking with a constant speed of ??1meters per second along High Street and sees a…

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Q: Ship A is sailing due south at 16 mi/h, and ship B, 32 miles south of A, is sailing due east at 12…

A:

Q: An airplane is flying 20.0" north of east at a speed of 750 km/h. How fast is it moving to the…

A: 750 km/h, 20o [N of E]

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A: Given,  y0=180180 m dydt=-1313 m Is (Going towards) x0=6060 m dydt=1010m/s (Going a way) t=55 sec…

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A: a)Downward direction is treated as positive. Vertical displacement is,

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A: The smallest distance between any two journey points is defined as displacement.

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Q: A Wide Reciever is running along the sideline straight towards the goal at a constant speed. When he…

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Q: An archer fish spies a meal of a grasshopper sitting on a long stalk of grass at the edge of the…

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Q: The home run fence at Obojobo Ballpark is 100. m from home plate and 4.5 m tall. A hit starts 1.5 m…

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Q: One of the most amusing things a person can experience is that in certain parts of the world a still…

A: The first law of thermodynamics is based on the principle of conservation of energy.

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A: Given:-                  A swimmer, capable of swimming at a speed of 1.20 m/s in still water,…

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A: Note:- We  get answers but sometimes it is not exactly match with given options because of using…

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A: Draw the motion diagram of the biker.

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A:

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.