Physics, 22.11.2021 22:40 aubreyfoster
a train accelerates uniformly from rest at station a to maximum speed of 72 km per hour the constant maximum speed is maintained for a period of time and the train then decelerate uniformly until it comes to a stop of station B. The distance between two railway station is 22km and the journey takes 20min if the magnitude of acceleration is half of that deceleration, by using graphical method determine (I)The acceleration in m/s (ii)Time t, taken in seconds (iii)Prove the solution by using Newton's equestion of motion.
Answers: 3
Physics, 22.06.2019 01:30, chandranewlon
Ablock of mass 1.5 kg slides down an inclined plane that has an angle of 15. if the inclined plane has no friction and the block starts at a height of 3 m, how much kinetic energy does the block have when it reaches the bottom? acceleration due to gravity is g = 9.8 m/s2. a. 6.8 j b. 50.9 j c. 0 j d. 44.1 j
Answers: 1
Physics, 22.06.2019 05:30, kaitlynmoore42
James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the
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a train accelerates uniformly from rest at station a to maximum speed of 72 km per hour the constant...
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