A horizontal force of 100 N is applied a block solve this

[wein7145]

Homework Statement

1) A block lies on a horizontal friction-less surface. A horizontal force of 100 N is applied to the block giving rise to an acceleration of 3m/s^2.

(a) Determine the mass of the block.
b)Calculate the distance the block will travel if the force is applied for 10s.
c)Calculate the speed of the block after the force has been applied for 10s.

Homework Equations

Force=mass*(acceleration)
distance = 1/2*a*t^2
velocity = a*t

The Attempt at a Solution

a) I'm pretty sure it's just Force/accel =mass so 100N/3m/s^2=33.33kg (Edit kg not N)
b) distance = 1/2*a*t^2 = 1/2*3 m/s^2 * (10s)^2 = 150 m
c) velocity = a*t = 3 m/s^2 * 10s = 30 m/s
Just check over my work. At least I feel like I'm learning something this week.

 

[SteamKing]

Homework Statement

1) A block lies on a horizontal friction-less surface. A horizontal force of 100 N is applied to the block giving rise to an acceleration of 3m/s^2.

(a) Determine the mass of the block.
b)Calculate the distance the block will travel if the force is applied for 10s.
c)Calculate the speed of the block after the force has been applied for 10s.

Homework Equations

Force=mass*(acceleration)
distance = 1/2*a*t^2
velocity = a*t

The Attempt at a Solution

a) I'm pretty sure it's just Force/accel =mass so 100N/3m/s^2=33.33N
b) distance = 1/2*a*t^2 = 1/2*3 m/s^2 * (10s)^2 = 150 m
c) velocity = a*t = 3 m/s^2 * 10s = 30 m/s
Just check over my work. At least I feel like I'm learning something this week.

In a) the units of mass are not Newtons.

 

[wein7145]

In a) the units of mass are not Newtons.

Whoops your right they are kg (Kilograms) But does everything else look good?

 

[SteamKing]

Whoops your right they are kg (Kilograms) But does everything else look good?

Yes, everything else seems to be OK.