To the nearest newton, what is the required net force to give a bicyclist and bicycle...
To the nearest newton, what is the required net force to give a bicyclist and bicycle with a combined mass of 87.3 kg an acceleration of 2.34 m/s2?
A car initially contains just its driver. The combined mass of car and driver is 1400 kg. When the gas pedal is pushed down all the way, the car reaches its maximum acceleration of 3.1 m/s2. If the driver then picks up three of his friends, the combined mass is increased by 300 kg. What is the maximum acceleration possible now if the force provided by the engine remains the same as before? Round your answer to the nearest tenth of a m/s2.
A motorcycle moving at 11.0 m/s increases in speed to 28.0 m/s over a period of 5.60 s. If the motorcycle’s mass is 390 kg, what net force acts on the motorcycle? Round your answer to the nearest newton.
The brakes of a 200 kg sled are applied while it is moving at 6.5 m/s, which exerts a force of 270 N to slow the sled down. To the nearest meter, how far does the sled travel while coming to a stop?
A 0.35 kg yo-yo is whirled around by its string in a circle of radius 0.55 m at a constant speed of 2.8 m/s. To the nearest tenth of a newton, what is the required centripetal force to keep this yo-yo whirling in a circle?
Homework Answers
For e part we can use formulae , f=mv2/r and put all the values we are given
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To the nearest newton, what is the required net force to give a
bicyclist and bicycle...
An astronaut weighs 850 N on the Earth’s surface. When the astronaut lands on Planet X,...
An astronaut weighs 850 N on the Earth’s surface. When the astronaut lands on Planet X, she weighs 190 N. To the nearest tenth of a m/s2, what is the acceleration of gravity on Planet X? (hint: first find her mass!) An elevator car loaded with two passengers has a mass of 1200 kg. What tension must be applied by the elevator cable to give the car an acceleration of 1 m/s2 upward? Round your answer to the nearest newton....
The powerful motorcycle, a chopper, in Problem 10 of Ch. 4.3 develops force, such that it...
The powerful motorcycle, a chopper, in Problem 10 of Ch. 4.3 develops force, such that it accelerates at 3.50 m/s2 at v = 90.0 km/h, as written. Familiarize yourself with the entire problem. TASKS: (1) Carefully construct a free body diagram of the chopper with horizontal AND vertical constituent forces acting on it at v = 90.0 km/h. (2) Calculate "the magnitude of the constituent force F the motorcycle exerts backward on the ground to produce its acceleration if the...
Chapter5. Question2- An 825-N force is required to pedal a bike with an acceleration of 11.0...
Chapter5. Question2- An 825-N force is required to pedal a bike with an acceleration of 11.0 m/s squared . What is the mass of the bike and rider? Question4- What is the force necessary for a 2400-Kg truck to accelerate at a rate of 8.0 m/s squared? Question 6- A 340-N box has a frictional force of 57 N. Find the coefficient of Kinetic friction. Question12- Find the total force necessary to give a 280-Kg motorcycle an acceleration of 3.20m/s...
10: A powerful motorcycle can produce an acceleration of while traveling at 90.0 km/h. At that...
10: A powerful motorcycle can produce an acceleration of while traveling at 90.0 km/h. At that speed the forces resisting motion, including friction and air resistance, total 400 N. (Air resistance is analogous to air friction. It always opposes the motion of an object.) What is the magnitude of the force the motorcycle exerts backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 245 kg? The powerful motorcycle, a chopper, in Problem...
10: A powerful motorcycle can produce an acceleration of while traveling at 90.0 km/h. At that...
10: A powerful motorcycle can produce an acceleration of while traveling at 90.0 km/h. At that speed the forces resisting motion, including friction and air resistance, total 400 N. (Air resistance is analogous to air friction. It always opposes the motion of an object.) What is the magnitude of the force the motorcycle exerts backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 245 kg? The powerful motorcycle, a chopper, in Problem...
1. A car, travelling at 30m/s slows to 10m/s in 5 seconds. What was the acceleration?...
1. A car, travelling at 30m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s B) 4m/s C).-2 m/s D). -9.8m/s 2. A ball thrown straight up takes 3 seconds to reach its maximum height. The height is most nearly B). 45m C). 60m D), 90 m A). 30m 3. A driver of a car wishes to pass a truck on the highway. Her car can accelerate at a constant 5m/s'. How long does it take...
4. In a collision which of the following quantities is always conserved? A). Acceleration B). Energy...
4. In a collision which of the following quantities is always conserved? A). Acceleration B). Energy C). Kinetic Energy D). Momentum 5. If the applied force is perpendicular to the motion of the object then the Work done by the force is ___ A). Negative B). Positive C). Zero 6. A car, travelling at 40m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s? B). -4m/s2 C).-2 m/s2 D). -9.8m/s 7. A ball thrown straight up...
Can Some one solve for me this 5 problem. with Question numbers. this all Problem. thank...
Can Some one solve for me this 5 problem.
with Question numbers.
this all Problem. thank you
13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s? 14) What force is needed to stop a 1500 kg car in 40 m if it is initially moving at 35 miles per hour? 15) A particle is moving in a straight line with constant acceleration a. Derive a general equation for velocity v at position x in terms...
1. In the Canadian Grand Prix auto race, the drivers travel a total distance of 552...
1. In the Canadian Grand Prix auto race, the drivers travel a total distance of 552 km in 69 laps around the track. i) What is the distance of 1 lap? ii) If the race lasted 136 min 44 sec, what is the average speed of the car for the race? Express in km/h iii) If the fastest lap time is 2 min and 20 sec, what is the average speed for this lap? Express your answers in m/s. iv)...
The driver of a car of mass M which is moving along a straight road with...
The driver of a car of mass M which is moving along a straight road with initial speed v0 sees a deer in her headlights, and reacts quickly, lifting her foot of the gas and applying the brake pedal with maximum force. The anti-lock brakes cause the largest possible static friction force to be applied on the tires by the road, which continue to roll so the car does not skid. The coefficient of static friction between the tires and...
1. A car, travelling at 30m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s B) 4m/s C).-2 m/s D). -9.8m/s 2. A ball thrown straight up takes 3 seconds to reach its maximum height. The height is most nearly B). 45m C). 60m D), 90 m A). 30m 3. A driver of a car wishes to pass a truck on the highway. Her car can accelerate at a constant 5m/s'. How long does it take...
4. In a collision which of the following quantities is always conserved? A). Acceleration B). Energy C). Kinetic Energy D). Momentum 5. If the applied force is perpendicular to the motion of the object then the Work done by the force is ___ A). Negative B). Positive C). Zero 6. A car, travelling at 40m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s? B). -4m/s2 C).-2 m/s2 D). -9.8m/s 7. A ball thrown straight up...
Can Some one solve for me this 5 problem.
with Question numbers.
this all Problem. thank you
13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s? 14) What force is needed to stop a 1500 kg car in 40 m if it is initially moving at 35 miles per hour? 15) A particle is moving in a straight line with constant acceleration a. Derive a general equation for velocity v at position x in terms...
1. In the Canadian Grand Prix auto race, the drivers travel a total distance of 552 km in 69 laps around the track. i) What is the distance of 1 lap? ii) If the race lasted 136 min 44 sec, what is the average speed of the car for the race? Express in km/h iii) If the fastest lap time is 2 min and 20 sec, what is the average speed for this lap? Express your answers in m/s. iv)...
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