Question

A ship of mass 3×10^7 kg initially at rest is pulled by a Force of 5×10^4 N through a distance of 3 m.Neglecting friction, the speed of ship at this moment is?
A) 1.5 m s^-1
B) 60 m s^-1
C) 0.1m s^-1
D) 5m s^-1​

Answer 1

Answer:

A) 1.5 m s^-1 is the answer

Answer 2

Answer:

Hello mate.

Explanation:

Mass of the ship m=3×10

7

kg

Force acting on the ship F=5×10

4

N

Thus acceleration of ship a=

m

F

∴ a=

3×10

7

5×10

4

=

3

5

×10

−3

m/s

2

Distance covered by the ship S=3 m

Initial speed of the ship u=0

Using v

2

−u

2

=2aS

Or v

2

−0=2×

3

5

×10

−3

×3

Or v

2

=10

−2

⟹ v=0.1m/s