1. ## Tough Physics Problem( grade 11)

This is a problem from my Kinematics unit and I am struggling to solve it:

Two toboggans are connected by a rope. The first toboggan has a mass of 60kg and the second has a mass of 40kg. The two toboggans are pulled by a rope connected to the first toboggan.If the force exerted on the rope is 250N[E], and friction between the toboggans and the ice can be ignored:

a)Find the acceleration of the toboggans.
b)The tension in the rope connecting the toboggans("tension" is the force on the rope).

2. ## Re: Tough Physics Problem( grade 11)

Originally Posted by sakonpure6
This is a problem from my Kinematics unit and I am struggling to solve it:

Two toboggans are connected by a rope. The first toboggan has a mass of 60kg and the second has a mass of 40kg. The two toboggans are pulled by a rope connected to the first toboggan.If the force exerted on the rope is 250N[E], and friction between the toboggans and the ice can be ignored:

a)Find the acceleration of the toboggans.
b)The tension in the rope connecting the toboggans("tension" is the force on the rope).
a) Hint: F = ma. What is F? What is m?

b) The force on the second toboggan is equal to the tension in the string. You have the acceleration for answer a). So what is T?

-Dan

3. ## Re: Tough Physics Problem( grade 11)

Originally Posted by topsquark
a) Hint: F = ma. What is F? What is m?

b) The force on the second toboggan is equal to the tension in the string. You have the acceleration for answer a). So what is T?

-Dan
but is the 250N[E] the net force? that's what got me confused >.< . I think it is not, or am i wrong?

4. ## Re: Tough Physics Problem( grade 11)

Originally Posted by sakonpure6
but is the 250N[E] the net force? that's what got me confused >.< . I think it is not, or am i wrong?
Yup, the net force on the system is 250N.