Science, asked by Ҡαηнα, 1 month ago

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Answered by AlanWaIker
33

what is acceleration. si unit of it

Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. .Acceleration is defined as the change in the velocity vector in a time interval, divided by the time interval.

The SI unit of acceleration is metres/second2 (m/s2). Force (F), mass (m) and acceleration (g) are linked by Newton's Second Law, which states that 'The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass'.

dintinguish speed and velocity.

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement. ... For example, 50 km/hr (31 mph) describes the speed at which a car is traveling along a road, while 50 km/hr west describes the velocity at which it is traveling.

why are lysosomes known as suicide bags

Lysosomes are known as the suicidal bag of the cell because it is capable of destroying its own cell in which it is present. It contains many hydrolytic enzymes which are responsible for the destruction process. This happens when either the cell is aged or gets infected by foreign agents like any bacteria or virus.

Answered by adityapatel57208
0

Answer:

1. Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. ... Acceleration is defined as the change in the velocity vector in a time interval, divided by the time interval.

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