A load of mass 20 kg is lifted with the help of a rope at a constant acceleration. The load covers a height of 5 m in 2 seconds. Calculate the tension in the rope. In a rocket m changes with time. Write down the mathmatical form of Newton’s law in this case and interpret it physically.
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s=ut+1/2at²
a=s/ut+1/2t²
a=5/0*2+1/2*2*
a=5/2
a=2.5
so ,
F=m*a
F=tension
F=20*2.5
F=50N
a=s/ut+1/2t²
a=5/0*2+1/2*2*
a=5/2
a=2.5
so ,
F=m*a
F=tension
F=20*2.5
F=50N
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