Question

block whose mass is M = 30 kg is pushed across a frictionless surface by a stick whose mass is M = 2 kg the block is moved from rest a distance of 3 metre into seconds at constant acceleration with what force does push on block​

Answer 1

Answer:

45N

Explanation:

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Answer 2

Answer:

Force applied on the  block = 192N

Explanation:

Distance = 3m

time = 1sec

Total mass = 30kg+2kg= 32kg

using newton's equation of motion: $s=u.t + \frac{1}{2}at^2$

$\implies 3= 0.1 + \frac{1}{2}a.(1)^2$

$\implies a=6m/s^2$

Force = mass*acceleration

Force applied on the  block = 32*6 = 192N

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