Exercise 3:
A truck engine of mass 5,000 kg is pulling a trailer of mass 1,000 kg along a level track
at an acceleration of 0.10 m/s2. The resistances are 10 N per 1,000 kg for the truck
engine and 5 N per 1,000 kg for the trailer.
5,000 kg
a = 0.10 m/s2
1,000 kg 10
00 0 0
1,000 kg
towbar
(a) Draw a free body diagram of the engine and the trailer.
(b) Calculate: (i) the tension in the connecting tow bar between the engine and the
trailer, and
(105 N)
(ii) the forward thrust exerted by the engine.
(655 N)
END

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance