Question

A block slides down an inclined surface of inclination 30° with the horizontal. Suppose the block of this problem is pushed down the incline with a force of 4 N. How far will the block move in the first two seconds after starting from rest? The mass of block is 4 kg. ?

Answer 1

Refer this link for the first part,

https://brainly.in/question/6141260

Net Force acting on the Incline = 4 + mgsin30 - friction

= 4 + 20 - μmgcos30

= 24 - 0.11 × 10 × 4 × √3/2

= 24 - 4

= 20 N

∴ ma = 20

⇒ a = 5 m/s².

Now, The displacement covered by the man in 2 seconds,

S = ut + 1/2 × at²

⇒ S = 1/2 × 5 × 4

∴ S = 10 m.

Hope it helps.

Answer 2

Answer:10

Explanation:

Refer 6 th question