Question

4 act of an object of mass 4 kg and change its velocity at 10 per second to 2 metre per second in 5 second find the magnatude of force​

Answer 1

Answer:

-32/5 N

Explanation:

Mass = 4 kg

Initial velocity = 10 m/s

Final velocity = 2 m/s

Time = 5 seconds

Force = m × ( v - u / t )

= 4 × ( 2 - 10 / 5 )

= 4 × -8/5

= -32/5 N

Answer 2

Explanation:

mass of the object=4 kg

acceleration= v-u

------------

t

2 - 10

= -------------

5

= -8/5

force = mass * acceleration

= 4* -8/5

= -6.4 n

(-) sign shows that the force is applied in the opposite direction

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