1. A boat is pulled along a canal using a rope tied to its bow. The rope makes an angle of 15° with the centre line of the canal and the force applied to the rope is 1800N. Calculate the
force pulling the boat along the canal and the force pulling the boat to the side of the canal.

A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)