A stone was kicked at an angle of 20.0° above the horizontal with initial speed of 11.0 m/s. Neglecting air resistance, what will be the total time (in seconds), the stone spend in air before reaching to its final position. (Assume g = 10 m/s-)

Q: you throw a rock horizontally off a cliff with a speed of 20 m/s and no significant air resistance.…

A: From the kinematics equation, the expression for the final vertical velocity of the rock is:…

Q: What is the (i) vertical acceleration (ii) horizontal acceleration of a projectile at any instant?

A: i) Vertical acceleration component is,

Q: If you drop an object from a height of 1.8 m, it will hit the ground in 0.60s. If you throw a…

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Q: A soccer ball, at rest on the ground, is kicked by Karla with an initial velocity of 20 m/s at a…

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Q: If we neglect air resistance, then the range of a ball (or any projectile) shot at an angle 0 with…

A: The initial velocity of a projectile = voLaunch angle = θAcceleration due to gravity = g

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A: “Since you have asked multiple questions which are not linked with each other, we will solve the…

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A: 1. When a ball is thrown at any angle in the air then it's vertical motion is free fall motion. Free…

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Q: - The pasition as a function of time of a body dropped rom a certain height is described by He…

A: Given that The position vector is r(t)→ = [-(4.9t2)j^]m

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A:

Q: Now, imagine an elephant and a feather under free-fall (if there is no air resistance) being dropped…

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A: Given : Balloon's speed = 12 kmph and wind speed = 22 kmph Time = 9 seconds

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Q: Suppose a ball is

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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.