The acceleration of a sprinter is 10 m/s2. the force exerted on the starting blocks is 650 n. what is the mass of the sprinter? force = mass = acceleration =

The mass of sprinter is 65 kg.

Explanation:

Force is defined as the push or pull on an object with some mass that causes change in its velocity.

It is also defined as the mass multiplied by the acceleration of the object.

Mathematically,

where,

F = force exerted on starting blocks = 100 N

m = mass of the sprinter = ?

a = acceleration of the sprinter =

Putting values in above equation, we get:

Hence, the mass of sprinter is 65 kg.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.