a roller coaster is moving at 10m/s at the top of the hull and 22 m/s at the bottom of the hill two seconds later. Explain how to find the acceleration of the roller coaster then find the average...

a roller coaster is moving at 10m/s at the top of the hull and 22 m/s at the bottom of the hill two seconds later. Explain how to find the acceleration of the roller coaster then find the average...

A 1.5 tonne car travelling at 100km/h suddenly brakes. The brakes provide an overall force of 50 times the normal reaction. Calculate the acceleration of the car.

A small car of mass 500kg is travelling at 120km/h when it hits stationary truck (of 1.5 tonne mass) head on. The small car rebounds and travels in the opposite direction at 40km/h. The collision...

a car is stopped and a truck drives by at a speed of 28.0 m/s. if the other car is at a stop and starts accelerating at a speed of 4m/s, how long will it take to catch up?

A mass is being pulled up an incline plane. The angle of the incline plane is 33 degrees. The mass is 11 kg and the pulling force is 185 N at an angle of 25 degrees to the plane. The coefficient of...

The blocks A and B are connected by a piece of string. Block B rests on an inclined plane of 36 degrees and block a hangs vertically. The coefficient of friction between Block B and the inclined plane...

You need to move a 53 kg armoire across the room. If you push with a force of 68 N, and the armoire accelerates at 0.10 m/s2 squared, what is the coefficient of friction of the carpet?

Marks: --/2 A 17.9kg box is accelerating down a 35° incline. The coefficient of kinetic friction is 0.53. What is the acceleration of the box? Give your answer . . . in terms of m/s2...

A car accelerates uniformly from rest at 12.5 m/s^2 for 10 seconds. It then brakes to a rest over a distance of 1000 meters.

Are the following roller coasters accelerating? Yes or No? And explain why please. A roller coaster speeding up? A roller coaster speeding down? A roller coaster moving in a straight...

At the bottom of the loop of your roller coaster, the velocity is 30 m/s and the radius of the loop is 50 m. Is the amount of acceleration riders will experience in this loop considered safe? Why...

Martin sells a stock investment for $26,000 on August 2, 2015. Martin's adjusted basis in the stock is $15,000. a. If Martin acquired the stock on November 15, 2014, calculate the amount...

Gabriella (75 kg) rides a roller coaster. What is her acceleration at the top of the vertical loop if she feels like her weight is 1200N? What is Gabriella's...

An engineer proposes a new roller coaster for daredevil teens and adults. Along with sizzling vertical loops and horizontal curves, her track would travel beneath a waterfall and into a dark tunnel...

acceleration

A speed skater moving across frictionless ice at 5.0m/s hits a 3.0-m-wide patch of rough ice, she slows steadily, then continues on at 3.7m/s. What is her acceleration on the rough ice? Use 2 significant...

What is the minimum velocity required of a roller coaster at the top of a vertical loop with a radius of 7 m? SHOW ALL WORK PLEASE. May use if needed: Fc = Fn +...

Mars has a mass of 6.4 × 1023 kg. It has a moon named Phobos with a mass of 1.07 × 1016 kg. a. If their centers are 9400 km apart, what is the force of gravity acting on Phobos? b...

Duane has a mass of 73 kg and slides down an icy hill on a sled. The hill has an angle of 15 degrees and there is no friction. I know that acceleration is the change in velocity/...

I dont know how to figure this out.