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When a ball collides with a wall, at an angle θ say, the impulse exerted on the ball is perpendicular to the wall and causes a change in the momentum of the ball in that direction; it does not however affect the momentum parallel to the wall.

Therefore, if the approach velocity of the sphere is resolved into components parallel and perpendicular to the wall, one of these components is changed by the impact and the other remains unchanged.

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A projectile fired from the ground follows a parabolic path The speed of the projectile is minimum at the top of its path?

At the top of its path, the vertical component of the projectile's velocity is zero, making the overall speed minimum. This occurs because gravity slows down the projectile's upward motion until it stops momentarily before falling back down. The horizontal component of the velocity remains constant throughout the motion.


A ball of mass m rolls off a cliff of height h with a horizontal velocity v it reaches the ground with vertical speed of?

If one assumes air resistance to be negligible, then: final velocity = sqrt( g * 2 * h ) where g is 9.8 metres per second per second. The quantities v and m do not matter, because gravitational acceleration does not depend on mass (all objects fall at the same rate) and because the horizontal velocity is independent of the vertical velocity.


The velocity of a body was noted to be constant during five minutes of its motion What was its acceleration during this interval?

The acceleration of the body was zero during this interval because its velocity was constant. Acceleration is the rate of change of velocity, so if the velocity does not change, the acceleration is zero.


Which component is reduced during the electrolysis of brine?

water


What is the difference between group velocity and phase velocity in a stationary wave on a string?

The velocity of a wave which maintains consatnt phase at all successive positions during propogation is known as wave velocity or phase velocity. The velocity of a group of waves which maintains constant poditions during the propogation is known as group velocity.

Related Questions

Why the horizontal velocity component remains constant and the vertical velocity component continuously changes during projectile motion?

The horizontal velocity component remains constant because there are no horizontal forces acting on the projectile (assuming no air resistance), so the velocity remains unchanged. The vertical velocity component changes due to the force of gravity, which accelerates the projectile downward, increasing its velocity as it falls.


Why do the vertical solar rays produce more heat?

Because vertical solar rays are less oblique during Sumner and are concentrated over smaller areas


Which is the total velocity of a projectile at maximum height?

It depends. If the projectile goes straight up and straight down, its velocity will be zero at the top. If the projectile is a baseball about halfway between the pitcher and the bat, its velocity might be 150 km/h.


The horizontal and vertical components of a projectile's velocity are independent of each other what does this statement mean?

That means the if you change one you do not necessarily change the other. In the case of the projectile the vertical component is dependent on time (if it is a projectile near a large mass like the earth) gravity acts on it accelerating the projectile in a downward direction. The horizontal component remains the same during the entire flight (if we disregard air resistance and such things).


How fast is a projectile moving at the top of its trajectory?

At the top of its trajectory, a projectile's vertical velocity is momentarily zero, while its horizontal velocity remains constant. The speed of a projectile at the top of its trajectory can be determined by calculating the magnitude of its velocity vector using the horizontal and vertical components of velocity.


A projectile fired from the ground follows a parabolic path The speed of the projectile is minimum at the top of its path?

At the top of its path, the vertical component of the projectile's velocity is zero, making the overall speed minimum. This occurs because gravity slows down the projectile's upward motion until it stops momentarily before falling back down. The horizontal component of the velocity remains constant throughout the motion.


What muscles are incised from superficial to deep for an appendectomy?

External oblique, internal oblique, and transversus abdominis


A ball of mass m rolls off a cliff of height h with a horizontal velocity v it reaches the ground with vertical speed of?

If one assumes air resistance to be negligible, then: final velocity = sqrt( g * 2 * h ) where g is 9.8 metres per second per second. The quantities v and m do not matter, because gravitational acceleration does not depend on mass (all objects fall at the same rate) and because the horizontal velocity is independent of the vertical velocity.


If sound goes a distance of 2500 m in 8 seconds what is its velocity?

Speed is the magnitude component of velocity. Velocity is the displacement d during a time interval t . d = 2500 m and t = 8 seconds Solution : v = 2500/8 = 312.5 m/s


A shotputter throws the shot with an initial speed of 15.5 ms at a 34.0 angle to the horizontal calculate the horizontal distance traveled by the shot if it leaves the athletes hand at a height of 2?

-- The shot leaves his hand at 15.5 m/s directed 34 degrees above the horizon.The horizontal component of its velocity is 15.5 cos(34) = about 12.85 m/s .The vertical component of its velocity is 15.5 sin(34) = about 8.667 m/s .-- The shot will continue to rise until its vertical velocity is zero. Since its verticalacceleration is -9.807 m/s2 (g), it rises for 8.667/9.807 = about 0.884 second .-- Its average speed during that time is (0.5 x 8.667) = about 4.333 m/s , and itrises (0.884 x 4.333) = about 3.983 metersabove its release height, before itstarts falling. It then has 5.983 meters to fall before it hits the ground.-- The time needed to fall 5.983 meters from the peak of its arc isT = sqrt( 2h/g) = about 1.105 second. Added to the 0.884 second that it spent on the way up, that's a total of(0.884 + 1.105) = about 1.989 seconds that it spends in the air after beingreleased.-- Its horizontal progress in that time is (12.85) x (1.989) = about 25.55 meters .


What of the following quantities are zero for a projectile motion during flight?

During projectile motion, the vertical velocity is zero at the highest point of the trajectory. However, the horizontal velocity is constant throughout the flight and never zero assuming no external forces act horizontally. The acceleration due to gravity is always acting vertically downwards and is never zero during the flight of a projectile.


What is the relationship between vertical displacement and theoretical range?

The vertical displacement of a projectile has no direct effect on its theoretical range. The range of a projectile is determined by its initial velocity, launch angle, and acceleration due to gravity. Vertical displacement primarily affects the height reached by the projectile during its flight, while range refers to the horizontal distance traveled.