Question

an object is dropped vertically down on earth the change in its speed after falling through a distance D from its highest point is​

Answer 1

change in speed = final speed - initial speed

initial speed = 0

v= u- gt

v=-gt

change in speed = -gt

Answer 2

An object is dropped vertically down on earth the change in its speed after falling through a distance D from its highest point is​ 7m.

• Speed is the rate of movement or how fast it reaches, and it is the speediness of the object to reach the place.
• Speed is a scalar quantity and has no magnitude; it is the rate of fastness of the object to reach its destination.
• It is the dimension of the space, and its standard unit is a meter per second.
• Four types of speed are also present.
• Velocity is the state of the direction of the object or particle.
• Velocity is the scalar portion.
• It is the speed of transition of the distance.
• The standard unit is m/s.
• Velocity has both volume and movement.
• Velocity is the motion of an object or particle.
• Velocity is also called the rate of displacement.

Therefore, An object is dropped vertically down on earth the change in its speed after falling through a distance D from its highest point is​ 7m.

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