Mechanics

A chandelier with a weight of 100 N is suspended at a single point by

5. Record the effort force shown on the Newton Scale in newtons while pulling the cart up the inclined plane.

5. Tie one end of the 60-cm string to the mass. Place the mass on a table below

33. Why is it that a cat that falls from the top of a 50-story building will hit a safety net below no faster than if it fell from the twentieth story?

What is the question asking you to identify? This question is asking to clearly identify centripetal force.

After doing this problem, I found that I am very comfortable using the kinematic equation of vf = v​i​​+at, when I use this equation I find that I always get the right answer for the problem, which is great, and I have no further questions to help me understand this

5. A hockey player hits a puck at one end of an empty skating rink. The puck travels across the ice in a straight line until it is stopped by the goal at the other end. Explain how each of Newton’s laws of motion applies to this situation.

In a laboratory investigation a student moved 20 mm of a length of copper wire perpendicularly across a 0.50 T magnetic field. The ammeter connected to the ends of the wire indicated a current of 10 mA. If the total resistance of the circuit was 2.5 Ω, calculate: a. b. the constant velocity with which she moved the wire through the field, [2.5

The hypothesis is that the hooked mass used on the pulley to keep the cart stationary on the ramp is equal to the mass of the cart. The hypothesis is invalid, it is not supported by the data. Mass is a the amount of matter in an object so it always remain the same. As shown on the table, the hooked masses vary depending on the degree of the incline so it cannot be the mass of the cart. In addition, the correct calculation of the mass of the cart proves that the hypothesis is wrong. For the 15 degree incline, the mass of the cart is 19.3kg while the hooked mass is .050kg. This clearly shows that the hooked mass used on the pulley to to keep the cart stationary is not equal to the mass of the cart. For the 20 degree incline, the mass of the

To gather our information, we set up a pendulum and raised its height to 70 cm. In the wake of doing this we joined the string to the highest point of the pendulum and

1.6 A robotic rover with a mass on Earth of 100 kg is transported to Mars. What is its mass and weight on its new home? (Hint: You will need to look up the gravitational acceleration on mars.)

f) What is the slack or float for Activity G? Show your calculations. (5 points) (Points : 30)

14. A 25 kg mass is resting on a frictionless plane inclined at an angle of 15o to the horizontal. What force, at an angle of 30o to the plane, must be applied to maintain the mass in a state of equilibrium?

I made the tension and the Ff (force of friction) negative because they were opposing the block's motion. To find the angle I used trig identity. Trig identity is two equations that can only be used if an object is moving at constant speed or on the verge of moving. Since the block was traveling at constant speed I could use μ = tanθ or θ = inverse tangent of μ. I found μ so I did the inverse tangent of it and found that the angle that the block would slid down at constant speed with no outside forces was

Step 9: Because we measured the lengths in centimeters rather than meters, we need to calculate are ‘g’ value into m/s2 so we can compare it to the SI unit for acceleration due to gravity. (Eg. 981.4/100 = 9.81 m/s2)