Here are the solutions for the 8 page kinematics pack that i gave you weeks ago. Please bear in mind that I didn’t make these answers ðŸ™‚

# Category M4

# M4 Rotational Kinetic Energy Solutions

# M4 Kinematics, Torque and Moment of Inertia Solutions

Here are the solutions for the first of the latest homeworks before your finals.

As some of you have pointed out, there is an error in question 7 as I used diameter instead of radius. This means that omega should be 750 rad/s and alpha should be 1500 rad/s2. Luckily as the force only depends on the ratio of the two radii the answer for the Force is still 0.72. That was lucky ðŸ™‚

Well done for those that caught the error. You passed my final test ðŸ™‚

It should also be noted that as we never had time to get to tension in a pulley situation, the solution to question 5 is incomplete. The way I have calculated it is presuming a constant force is being applied which is fine for our needs at this time.

Thanks to all you guys keeping me on my toes. Where are the rest of you? ðŸ™‚

# M4 Conservation of Energy Homework Solutions

# M4 Force Worksheet Solutions

# M4 Review Worksheets

Here are some worksheets to help you prepare for the final exam in physics this semester. I will post solutions to homework sheets (not all of the sheets posted here) later this week.

**FRICTION**

**Homework sheets**

Inclined Planes no frcition calc

Coefficient of kinetic friction

**Extra Sheets**

friction worksheet

Friction_Worksheet_jmm

friction&normal sheet

**NEWTON’S LAWS**

Net_Force_and_Acceleration_Practice_Worksheet combo

2nd Newton Problems WS

CALCULATING FORCE WORKSHEET

force problems

# M4 Projectile Motion Homework Solutions

# M4 Projectile Motion Practice Problems Solution

# M4 Motion Graphs Homework Worksheet with Solutions

This is the worksheet on motion in one dimension with graphing from a few weeks ago. The answers are on the bottom of the sheet.