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In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a straightaway at 71.5 m/s. The driver of the Thunderbird realizes he must make a pit stop, and he smoothly slows to a stop over a distance of 250 m. He spends 5.00 s in the pit and then accelerates out, reaching his previous speed of 71.5 m/s after a distance of 350 m. At this point, how far has the Thunderbird fallen behind the Mercedes Benz, which has continued at a constant speed?
A hotel elevator ascends 273 m with a maximum speed of 3.78 m/s. Its acceleration and deceleration both have a magnitude of 0.91 m/s2. How long does it take to make the complete trip from bottom to top?
When a 0.111 kg mass is suspended at rest from a certain spring, the spring stretches 4.10 cm. Find the instantaneous acceleration of the mass when it is raised 5.80 cm, compressing the spring 1.70 cm.
questionexactly 3.0s after a projectile is fired into the air from a flat ground it is observed to have velocity v
Pool players often pride themselves on their ability to impart a large speed on a pool ball. At what speed did his pool ball hit the ground
Two ships are floating at rest in the ocean somewhere. Ship A (1100kg with an escape pod onboard) fires an escape pod horizontally at ship B (2000kg). What is the speed of the escape pod after it left the ship A? Assume that the ship glides throug..
You are designing a delivery ramp for crates containing exercise equipment. The crates of weight 1470N will move with speed 2.2m/s at the top of a ramp that slopes downward at an angle 25.0degrees. The ramp will exert a 621N force of kinetic friction..
How much work did the movers do (horizontally) pushing a 150- crate 10.2 across a rough floor without acceleration, if an effective coefficient of friction was 0.50.
A 160 km long electric power line made out of copper is installed during the Spring months at an average temperature of 10.7 °C. What is the change in the length of the cable on a -30.4 °C cold Winter day
A photon is scattered 60.0° during a collision with an electron, which is initially at rest and gains a speed of 6.00× 106 m/s during the collision
A 30.0g ball of clay traveling east at 1.00m/scollides and sticks together with a 30.0g ball of clay traveling north at 6.00m/s
What is the general differential equation for a transverse wave with displacements in the y direction travelling without dissipation in the x direction with velocity v?
A coin is placed on a turntable 13 cm from the center. A lump of clay placed behind the coin prevents it from sliding backwards , How long will it take before the coin begins to slide radially
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