A shopping cart accelerates when a stronggust of wind blows across the Walmart parking lot, blowing a stray cart toward your shiny new car. Your car manufacturer states that an impact of 4 m/s or less will not dent the car. If the wind gusts constantly at 12 N, the cart has a mass of 23 kg, and the car accelerates for 5 seconds, will your car be dented?

8. a block with an unknown mass slides at 2.82 m/s on a horizontal frictionless surface and it collided with an identical block that was at rest. they stick together. they then slide onto w rough board that has a coefficient of friction of 0.331. calculate the distance they slide before stopping

The Hulk (200 kg of pure angry muscle) collides head-on with a truck (2,500 kg). If the Hulk was running at 10.0 m/s and the truck was moving at 15.0 m/s in the opposite direction, after they stick together, what is their speed (in m/s)? (Hint: be careful about directions here, either the Hulk or the truck needs a negative initial velocity, I’ve left it up to you which one gets that negative initial velocity, but the final answer is just the speed, so if you wind up with a negative final velocity, drop the minus sign)

Muskox: In the arctic, male muskoxen compete for the attention of females by butting heads. On a cold day (-16.3 degree F), a young bull spies an older bull 13.9 m away and charges! The two meet in a head-on collision and come to a complete stop. The young bull has a mass of 681 kg and was running at a speed of 9.5 m/s. The older bull has a mass of 654 kg. The collision takes place on an icy patch, so you can ignore friction. (a) What was the speed of the older bull? (b) How many joules of energy were "lost" in this collision?

A car’s bumper is designed to withstand a 4.0-km/h (1.1-m/s) collision with an immovable object without damaging the body of the car. The bumper cushions the shock by absorbing the force over a distance a.  Calculate the magnitude of the average force on a bumper that collapses 0.195 m while bringing a 875-kg car to rest from an initial speed of 0.85 m/s, in newtons.

how long does it take a 2500 kg car to slow down from 15 m/s if it strikes a wall with a force of 10,000 N assuming that the wall is elastic?

A 0.2 kg softball is thrown straight up with an initial speed of 9 m/s.  How high in meters does it go?  Round to two significant figures.

Problem 5: A car's bumper is designed to withstand a 4.0-km/h (1.1-m/s) collision with an immovable object without damaging the body of the car. The bumper cushions the shock by absorbing the force over a distance. D A Calculate the magnitude of the average force on a bumper that collapses 0.22 m while bringing a 750-kg car to rest from an initial speed of 1.7 m/s, in newtons. F = sin() cos() tan() 7 8 9 HOME cotan() asin() acos() E 4 5 6 atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up!

with what force will 1055 kg car that is accelerating at 2.44 m/s/s hit a tree?

From 1946 through 1958, Col. John Stapp headed the U.S. Air Force Aero Medical Laboratory's studies of the human body's ability to tolerate high accelerations during plane crashes. Conventional wisdom at the time indicated that a plane's negative acceleration should not exceed 180 m/s2 (18 times gravitational acceleration, or 18g). Stapp and his colleagues built a 700-kg "Gee Whiz" rocket sled, track, and stopping pistons to measure human tolerance to high acceleration. Starting in June 1949, Stapp and other live subjects rode the sled. In one of Stapp's rides, the sled started at rest and 360 m later was traveling at speed 67 m/s when its braking system was applied, stopping the sled in 6.0 m. He had demonstrated that 18g was not a limit for human deceleration.   Find the time interval for Stapp and his sled to stop as their speed decreased from 67 m/s to zero.