1. State and explain Newton's Three Laws of motion, giving examples from daily life.
2. A 1500 kg car is accelerating at a constant rate. In two seconds, its velocity goes from 10 to 30 km/hr. What is the total force acting on the car, in N?
3. An astronaut in his space suit has a total mass of 300 kg. His weight on the asteroid Ceres is 2.00 N. What is the acceleration of gravity on Erewhon?
4. A 50 kg cannon shell is subjected to a constant acceleration of 1200 g while in the cannon barrel. What force is the burning propellant exerting on the shell?
5. Four forces, represented by four vectors, are plotted in standard position on the Cartesian plane. The lengths of the vectors, in arbitrary units, represent the strength of the forces in N. The forces are being applied to an object with a mass of 1 kg, located at the origin. In what direction will the object accelerate, and how rapidly? The force vectors are A(5,5) B(-3,-2) C(-1, 6) and D(-6, 3).

Solution Preview

1. Law I). Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
A real life example is a ball rolling from the top of the downhill and eventually stops on the road because friction exerts on it.
Law II)The relationship between an object's mass m, its acceleration a, and the ...

Solution Summary

The solution discusses Newton's laws and kinetics.

Basic Physics Problems (Force; Newton's Second Law; Horizontal Force ... horizontal force of 300 N is applied to a ... this situation a violation of Newton's second law...

Newtons law application-example. ... be calculated from the equation for the Kinetic energy , it ... illustates teh releation between various physical quantities such ...

... following questions and problems are from "Physics 7th edition ...Applying the equation s = ut + ½ at2 we get ... frictional force is less than the applied force, the ...

... A small girl applies a horizontal force of 2 ... Fd , which depends on the force applied and the ...Applying conservation of momentum: ( m1 + m2 ) v = m1v1i + m2v2i ...

Basic Physics Problems (Force; Acceleration; Friction; Energy: Kinetic... The force John applied on Jane is according to ... And from Newton's second law we can say: ...

... (a) Which law of physics precludes this ... kgm/s. Total time for which force is applied = 0.14 sec ... after collision be v. Then we can write applying conservation of ...

... and kinetic friction and also the application of Newton's... assumptions - comprehensible to my engineering or physics colleagues ... A force F is applied as indicated ...

Physics Questions: Speed, Force, Acceleration, Velocity ... A force of 4.6 N is applied to the block at an ... From Newton's second law we can write: (1.18) Plugging in ...

... The normal force is the force applied by the floor to the ... The force the box applies to the floor is the weight ... Also, since we apply a force F on the box above ...