Use the work-energy theorem to determine the force required to stop a 1100-kg car moving at...
Use the work-energy theorem to determine the force required to stop a 1100-kg car moving at a speed of 25.0 m/s if there is a distance of 55.0 m in which to stop it.
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Use the work-energy theorem to determine the force required to
stop a 1100-kg car moving at...
Calculate the force (in N) needed to bring a 1100 kg car to rest from a...
Calculate the force (in N) needed to bring a 1100 kg car to rest from a speed of 95.0 km/h in a distance of 100 m (a fairly typical distance for a non-panic stop). b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force exerted on the car and compare it with the force found in part (a). force in (b) force in (a)
A 1100-kg car is moving at 20 m/s due north. A 1600-kg car is moving at...
A 1100-kg car is moving at 20 m/s due north. A 1600-kg car is moving at 19 m/s due east. The two cars simultaneously approach an icy intersection where, with no brakes or steering, they collide and stick together. Determine the speed and direction of the combined two-car wreck immediately after the collision. magnitude=? direction=?
Questions about a 700 kg car: 1.) What is the work required (in J) to stop...
Questions about a 700 kg car: 1.) What is the work required (in J) to stop the car if it is going 20 m/s and stops in a distance of 35m? 2.) Now suppose the car were traveling 40 m/s. What is the work required (in J) to stop it? 3.) What distance (in m) is required for the car in the previous provlem to stop when traveling 40 m/s? Thanks
In order to stop a 1500 kg car that is originally moving at 25 m/s, and...
In order to stop a 1500 kg car that is originally moving at 25 m/s, and if the car stops over a distance of 50 m, what average force must act on the car?
17) Determine the work, in J, required to stop a 1500-kg car traveling at 30 m/s....
17) Determine the work, in J, required to stop a 1500-kg car traveling at 30 m/s. (hint: use the work-energy theorem). a) 2.4 x 105 b) 8.2 x 105 c) 1.7 x 105 d) 6.8 x 105 Answer_______________ 18) 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 30 J of work. Determine, in J, the change in thermal energy of the system. a) 4 b) 10 c) 20...
NAME: [1.) (20 pts) (Work-Energy Theorem) A 67.0 kg skier on a horizontal patch of snow...
NAME: [1.) (20 pts) (Work-Energy Theorem) A 67.0 kg skier on a horizontal patch of snow skiing at an initial speed of 11.0 m/s coasts to a stop after 177 m. (a.) Use the Work-Energy Theorem to find the coefficient of kinetic friction, H., between the skis and the snow. (6.) Suppose a 75.0 kg skier with three times the initial speed coasted to a stop over the same distance. Find the coefficient of kinetic friction between that skier's skis...
A set of crash tests consists of running a test car moving at a speed of...
A set of crash tests consists of running a test car moving at a speed of 12.2 m/s (26.8 m/h) into a solid wall. Strapped securely in an advanced seat belt system, a 55.0 kg (121.0 lbs) dummy is found to move a distance of 0.690 m from the moment the car touches the wall to the tíme the car is stopped. Calculáte the size of the average force which acts on the dummy during that time The force that...
If it takes 100m to stop a car initially moving at 100 m/s what distance is...
If it takes 100m to stop a car initially moving at 100 m/s what distance is required to stop a car moving at 200 m/s under the same condition? Show work using energy equations only. a. 50m b. 100m c. 200m d. 400m
The minimum distance required to stop a car moving at 35.0 mph is 40.0 ft. What...
The minimum distance required to stop a car moving at 35.0 mph is 40.0 ft. What is the minimum distance, in meters, for the same car moving at a speed of 70.0 mph assuming it has the same constant acceleration? Find your acceleration in units of m / s^2 first.
Determine the force to bring a 1500 kg car to rest if it was initially moving...
Determine the force to bring a 1500 kg car to rest if it was initially moving at 50 mph over a distance of 45 m.
NAME: [1.) (20 pts) (Work-Energy Theorem) A 67.0 kg skier on a horizontal patch of snow skiing at an initial speed of 11.0 m/s coasts to a stop after 177 m. (a.) Use the Work-Energy Theorem to find the coefficient of kinetic friction, H., between the skis and the snow. (6.) Suppose a 75.0 kg skier with three times the initial speed coasted to a stop over the same distance. Find the coefficient of kinetic friction between that skier's skis...
A set of crash tests consists of running a test car moving at a speed of 12.2 m/s (26.8 m/h) into a solid wall. Strapped securely in an advanced seat belt system, a 55.0 kg (121.0 lbs) dummy is found to move a distance of 0.690 m from the moment the car touches the wall to the tíme the car is stopped. Calculáte the size of the average force which acts on the dummy during that time The force that...
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