Recent content by missashley

i tried those answers and it says both were wrong

A certain pendulum clock that works perfectly on Earth is taken to the moon, where g = 1.62 m/s^2. Acceleration of gravity is 9.81 m/s^2 on Earth. THe clock is started at 12:00:00 AM and runs for 22 h. What will be the reading for the hours on the moon? answer in h T = 1 second g = 9.81...

Her weight downward is 500 N and her centripetal force is 34.544N so 500 - 34.544 = 465.465 N. is that the answer?

so does that mean i have to find her normal weight then times it by the centripetal force?

Homework Statement Sasha's favorite ride at the fair is the Ferris wheel that has a radius of 7.0m. 1. If the ride takes 20.0s to make one full revolution, what is the linear speed of the wheel? 2. What centripetal force will the ride exert on Sasha's 50.0kg body? 3. In order for...

Homework Statement Leif and Paige are rearranging the heights of their movable bookshelves; they remove one of the 2kg, 0.6 m long shelves by the two of them holding opposite ends. A 5.0 kg stack of books is piled up on the shelf 0.2 m from Leif. How much force must Leif and Paige each exert...

Homework Statement A 2410 kg car traveling to the west at 22.6 m/s slows down uniformly. It takes 6.13355 seconds for the the car to come to a stop if the force on the car is 8880N to the east. What is the car's displacement during the time it takes to stop? Answer in m Homework...

Homework Statement Auto companies frequently test the safety of automobiles by putting them through crash tests to observe the integrity of the passenger compartment. If a 1000. kg car is sent toward a cement wall with a speed of 14 m/s and the impact brings it to a stop in 8.00 * 10^-2...

hmmmm

Homework Statement A 2410 kg car traveling to the west at 22.6 m/s slows down uniformly. How long would it take the car to come to a stop if the force on the car is 8880 N to the east? Answer in units of s What is the car's displacement during the time it takes to stop? Answer in m Homework...

Nevermind I got it 0.47(-24-18) = -19.74 that's the answer

oops i meant - 2.82, it says it wrong

Homework Statement A 0.47 kg soccer ball approaches a player horizontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 24 m/s. What impulse was delivered to the ball by the player? Answer in kg*m/s...

yay i got it right! thanks a lot!

How do I find the velocity?