Question

A body has weight 20 Newtons how much force is required to move it vertically upward with acceleration of 2 m/s²?​

Answer 1

Answer:

hy mate here is your amswer

Explanation:

Fm=ma=FaF=mam=Fa

Method 1:

F=−W−g⋅a+(−(−W))=−20−9.8⋅2+20≈24.1 NF=−W−g⋅a+(−(−W))=−20−9.8⋅2+20≈24.1 N

Method 2:

F=−W−g⋅∑a=−20−9.8⋅(2+(−(−9.8)))≈24.1 N

Answer 2

Question-

A body has weight 20N. How much force is required to move it vertically upward with an acceleration of 2 m/s².

Answer-

Mass = 20N/10 = 2kg (Gravity acceleration = 10 m/s² approx)

Acceleration = 2 m/s²

Force = ?

We know that

Force = Mass × Acceleration

Substitute the values,

Force = Mass × Acceleration

⇒ Force = 2kg × 2 m/s²

⇒ Force needed to lift the body = 4N