A 49 kg box hangs from a rope. What is thetension in the rope if the following a

Question

A 49 kg box hangs from a rope. What is thetension in the rope if the following are true?

(a) The box is at rest?
1______ N
(b) The box moves up a steady 5.0 m/s?
2______ N
(c) The box has vy = 5.0 m/s and is speeding upat 5.0 m/s2?
3______ N
(d) The box has vy = 5.0 m/s and is slowingdown at 5.0 m/s2?
4______ N

Find a,b,c, and d and clearly show which answer is which. Like a=
(a) The box is at rest?
1______ N
(b) The box moves up a steady 5.0 m/s?
2______ N
(c) The box has vy = 5.0 m/s and is speeding upat 5.0 m/s2?
3______ N
(d) The box has vy = 5.0 m/s and is slowingdown at 5.0 m/s2?
4______ N

Find a,b,c, and d and clearly show which answer is which. Like a=

Explanation / Answer

a)when the box is at rest tension in the cable 49*9.8=480.2N B)even here net force is 0    hence tension is49*9.8=480.2N C)here net force is 5*49N upwards hence tension is480.2+245=725.2N d)here net force is 5*49N downwards hence tension is480.2-245=235.2N

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