The Physics of Running explained – PhysicsWorld Video
The Physics World explains the Physics of running through this simple narrative video.
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Categories: friction forces, General Physics, KINEMATICS Tags: education, Personal and Class Pages, Physics, physics world, Sheffield Hallam University, Short film, Sport, Tutorials
Relative Nature of Motion
Now we know that motion is a relative term.So absolute motion has no meaning, right?
So aren’t Galileo’s view that earth moves around sun and the church’s old belief that sun moves around earth actually not equally correct or equally wrong?
this is a question from hc verma’s concept of physics part 1.(from short answer questions)
Deepali Gupta asked
Answer: The state of motion as well as the nature of motion is relative. When we speak about any of these without SAYING any reference, we actually have some reference in mind.
When we say that earth is moving around the sun, it is true wrt sun. But, the actual nature of motion is unpredictable since the sun, the galaxy and all are in a state of motion. So, we can say about the nature of motion only with respect to some reference which is assumed to be at rest.
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Categories: KINEMATICS, Mechanics, motion work, Plus Two Physics Tags: motion, Physics, relativity, rest, velocity
Problem from relative velocity
A Boat covers certain distance between two spots in a river taking t1 hrs going downstream and t2 hrs going upstream. What time will be taken by boat to cover same distance in still water? posted by STUTI Answer: Incoming search terms:relative velocity...
Categories: Ask Physics, frac, KINEMATICS, Project Tags: answer, boat, distance, latex, numericalsLink, Physics, post, problem, relative motion, relative velocity, search terms, speed, time, velocity, water
The problem of a rock thrown vertically up
A rock is thrown vertically upward from the ground with an initial speed 15m/s. a. how high does it go b. how much time is required for the rock to reach its maximum height? c. what is the rock’s height at t=2.00s? (Posted by Merhawi) Answer: (a) u=15m/s a=-10m/s2 v=0 m/s [...]
Categories: Ask Physics, dispalcement, KINEMATICS, Mechanics, notion, Nuclear Physics, Project Tags: acceleration, answer, conservation of momentum, distance, gravity, ground, height, height c, initial speed, max, max height, maximum height, Merhawi, numerical problems, Physics, problem, rock, solved, speed, time
The problem of a rock thrown vertically up
A rock is thrown vertically upward from the ground with an initial speed 15m/s. a. how high does it go b. how much time is required for the rock to reach its maximum height? c. what is the rock’s height at t=2.00s? (Posted by Merhawi) Answer: (a) u=1...
Categories: dispalcement, KINEMATICS, Mechanics, notion, Solved Problems Tags: 10m, acceleration, distance, gravity, height, height c, initial speed, max, max height, maximum height, Merhawi, numerical, problem, solved, speed, time
The problem of a rock thrown vertically up
A rock is thrown vertically upward from the ground with an initial speed 15m/s. a. how high does it go b. how much time is required for the rock to reach its maximum height? c. what is the rock’s height at t=2.00s? (Posted by Merhawi) Answer: (a) u=1...
Categories: dispalcement, KINEMATICS, Mechanics, notion, Solved Problems Tags: 10m, acceleration, distance, gravity, height, height c, initial speed, max, max height, maximum height, Merhawi, numerical, problem, solved, speed, time
Homework from Projectile Motion
A projectile is projected at an angle theta with horizontal with speed u . If air resistance is taken in account , the angle with vertical at the time of hitting the ground will be a)more than (90 + theta) b)less than (90 – theta) c)(90 + theta...
Categories: KINEMATICS Tags: air resistance, angle theta, answer, ground, hitting the ground, homework, motion, Projectile, Projectile motion, speed, theta
