...2.4-kg block of wood at rest direct? A 15-g bullet traveling 213 m/s in a vertical direction buries itself in a 2.4-kg block of wood at rest directly
above it. As a result, the bullet/block combination moves vertically upward.
(a) Determine the velocity of the bullet/block combination at the...
...how fast will the ball strike the? If a baseball is thrown 30 m/s backwards from a truck moving forward 50 m/s how fast will the ball strike the glove of a ground-base catcher
...traveling up the slope? A block of mass, m, is projected up a slope at 16 m/s. The coefficient of dynamic friction is 0.15 and the slope is 15 degrees. How long will it take for the mass's speed to drop from 16 m/s to 4 m/s?
...with a 10.0 g ball of clay? A 40.0 g ball of clay traveling east at 5.50 m/s collides and sticks together with a 10.0 g ball of clay traveling north at 9.00 m/s.
(a) What is the ship's kinetic energy at this time?
(b) How much work is required to stop it? (Include the sign of this value.)
(c) What is the magnitude of the constant force required to stop it as it undergoes a displacement of 2.40 km?
Thanks in advance. Im not sure what formulas to use.
750-kg car traveling east. The two...? A 1200-kg pick-up truck traveling south at 15.0 m/s collides with a 750-kg car traveling east. The two vehicles stick together. A patrolman investigating the accident determines that the final position of the wreckage after the collision is 25.0 m, at an...
...figure out why my answer's wrong? wavelength = h / mu, right?
h = 6.63*10^-34
mass of an electron (m) = 9.10938188 × 10^-31
velocity (u) = 1.03*10^5
(6.63*10^-34) / (9.10938188 × 10^-31)*(1.03*10^5)
= 74.99
so why does my answer come up wrong? any help at all would be appreciated. i'm lost...
...surface? it then encounters a spring. If the car compresses the spring 49.0 cm before coming to rest, what is the force constant of the spring?
? N/m
A 1500 kg car is traveling along a straight road at 20 m/s. Two seconds later its speed is 21 m/s. What is the magnitude of the net force acting on the car during this time?
The combined mass of the bike and the rider is 81 kg.
(b) Find the initial kinetic energy of the system.
(c) The rider coasts up the hill. Assuming that there is no friction, at what height will the bike come to rest?
... The acceleration of gravity is 9.8 m/s2 . The car weighs 2.4 Mg and the angle of the road is 23 degrees.
1. What is the net centripetal force needed to keep the car from skidding sideways?
Answer in units of N.
2. Were there no friction between the car’s tires and the road, what...
...direction on a parallel track at? 15m/s . assuming each train to be 500 m long, find the time in which P overtakes Q. What will be the time of cross-over if the train Q is travelling in the opposite direction?
thanku! but this is not the right answer....but then i figured it out.....so thanks
A skier traveling 12.0 m/s reaches the foot of a steady upward 18° incline and glides 15.2 m up along this slope before coming to rest. What was the average coefficient of friction?
Physics problem. Please help! If possible, please plug numbers into equations! Also, explanations are appreciated!