Recent content by smbascug

m=60.0kg u=0.20 F= 100.0 N d1==10.0m KE(final) - KE(initial) 1/2mv^2 - 1/2mv^2 umm... how do i isolate v? or is this even correct?

How can you tell if energy is coserved or not?

A 60.0 kg crate, starting from rest, is pulled across the floor with a constant force of 100.0 N. For the first 10.0 m the floor is frictionless and for the next 10.0 m the coefficient of friction is 0.20. What is the final speed of the crate? Is it possible to use KE + PE = KE + PE...

The Sum of an integer and its square is 210. Find the integer.

Water strikes the turbine blads of a generator, that its rebounding velocity is reversed in direction undiminished in magnitude. If the flow rate is 60.0kg/s and the water speed is 16.5 m/s, what is the average force on the blades? My question is do i need to find something else in order to...

A 0.145-kg baseball traveling 35.0 m/s strikes the catcher's mitt which, in bring the ball to rest, recoils backward 11.0 cm. What was the average force applied by the ball on the glove? Can someone show me a formula for this problem or a way to solve this problem?? Please and Thank You

Another one... Thank you very much i got the first one. Physics isn't my strong point because i might not really good with word problems. A woman driving her car at 50 km/h approaches an intersection when the traffic lights turns yellow. She knows that the yellow ligh last only 2.0s...

How would you solve this... Calculate the carrying capacity (number of cars passing a given point per hour) on a freeway with three lanes (in one direction) using the following assumptions: the average speed is 90 km/h. the average length of a car is 6.0m, and the average distance between cars...