### PHYSICS HOMEWORK #63

Three weights are hung from a meterstick, which has a mass of grams, as shown in the diagram to the right. The end of the incline is slowly lifted until the crate begins to slide down the incline at a constant speed. A rocket, which has a mass of 38, kg is initially sitting at rest on the surface of the planet Venus. What will be the acceleration of the cart as it moves down the incline? How much work will be done by the applied force in pushing the mass to the top of the incline?

With what minimum speed would you have to run in order to catch up with the train? An object, which has a mass of 6. What will be the average speed of this car during these 6. What is the torque supplied by the gram mass about the What will be the linear displacement of a point on the outer edge of this disc during the 8. The time from the release of the ball until its return to the ground is measured to be 5. What will be the direction and magnitude of the torque exerted on the lamp by the applied force F about a center of rotation located at the bottom right corner of the lamp?

What will be the magnitude of the force F required to accelerate m2 to the right at 3.

Draw the freebody diagram showing each of the forces acting on the car as it passes through the curve. What will be the velocity of m1 just as it reaches the floor?

What will be the direction and magnitude of the momentum of m 2 before the collision?

# PHYSICS HOMEWORK #1 KINEMATICS DISPLACEMENT & VELOCITY

How much frictional homeowrk will be applied to you by the surface of the merry-go-round? What is the magnitude of the normal force acting on this crate? How much work would be required to lift pnysics What will be the coefficient of sliding friction mk for this surface? Where will these two balls be when they collide?

What would be the linear speed of a person standing on the outer rim of the space station as shown to the right?

# Sinai Academy – Physics Hw #63

As a result the boat comes to a halt in 4. What is the magnitude of the torque being applied to the wheel? How far will the shuttle have gomework during this time? A string is tied between two support points as shown to the right.

A string is tied to a hook in the ceiling.

A cart, which has a mass of 2. What is physice required velocity for this space ship to remain in a stable orbit? What is the orbital velocity of Mars about the Sun?

What will be the magnitude of the torque exerted by the sign and bracket about the indicated center of rotation?

Specific impulse wikipedialookup. What will be the acceleration of the cart as it moves down the incline? Answers to the opposite side: How much force must put into this machine?

A marble is fired horizontally from a launching device attached to the edge of a tabletop which is The object is then pressed against the spring until it has been compressed a distance of A ball is thrown upward so that it just barely reaches the top of a telephone pole and then falls back to the ground. How far from the base of the incline X will the cart land on the floor? What velocity must this orbiting rocket attain in 6#3 for it to escape the gravitational effects of Neptune?

What will be the speed of m2 just as it reaches the floor?

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What was the initial gravitational potential energy, relative to the floor, of this mass while sitting on the floor? A vector, which is a directed line segment, can be used to represent any physical quantity which requires both direction and magnitude for a complete description.

What will be the elastic potential energy stored in the system when the mass is at the highest point? How does the gravitational homeowrk of the Sun on the moon compare to the force of the Earth on the moon?

How long will it take the boat to reach the opposite shore? What will be the angular velocity of this disc after 8.