Recent content by elizabethg

I need help on a problem, I tried using many equations, what do I do?... A m1=13.5kg object and a m2=12.5kg object are suspended, joined by a cord that passes over a pulley with a radius of 10 cm and a mass of 3 kg. The cord has a negligible mass and does not slip on the pulley. The pulley...

thank you, but i figured it out already, it just took me some time, i truly appreciate it from the bottom of my heart that you would take your time to help me. thank you

All my values are correct, but i thought you would integrate it or something, the answers our teacher gave us to choose from were .0251, .111, .360, .521, .684. i thought you would just plug those numbers in. I am not really sure.

Hello, I need help on this problem... A car is traveling at a constant speed of 18.0 m/s, when the motorist sees a cow in the road 38.0 m ahead. If the maximum acceleration of the vehicle is -4.50 m/s^2, what is the maximum reaction time fo the motorist that will allow her to avoid hitting...

I need help, i tried this problem many times and i keep getting the wrong answer. A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 79.2 m/s at ground level. Its engines then fire and it accelerates upward at 4.10 m/s2 until it reaches an altitude of...

hello, could u help me with my physics homework?

Kathy Kool buys a sports car that can accelerate at the rate of 5.40 m/s^2. She decides to test the car by racing with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 1.00 s before Kath. Stan moves with a constant acceleration of 4.00 m/s^2...

Pleeeeeeeeeeeeeeeeease Help! A test rocket is fired vertically upward from a well. Acatapult gives it an initial speed of 79.2 m/s at ground level. Its engines then fire and it accelerates upward at 4.10 m/s^2 until it reaches an altitude of 950m. At that point its engines fail, and the...