1.

In order to movea 10kg object fromconstant force of 4N is appliedfor 4 minutes Calculate the velocity ofobject at the end of 4 minutes.​

Answer»

ANSWER:

V = 400 m/s

Step-by-step explanation:

To find - v (final velocity)

Given :-

  • Mass of object - 10 kg
  • Constant force applied - 4 N

= 4 kgm/s²

  • Force applied for - 4 min

= 240 s

Now,

F = ma

a = F/m

= 4 kgm/s² / 10 kg

= 2/5 m/s²

We can find 'v' by using 1st eq. of motion,

v = u + at

Initial velocity (u) = 0 m/s

Therefore,

v = 0 + (5/3 m/s²) × (240 s)

v = 400 m/s


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