1. A more than 30 g's. person has a reasonable chance of surviving an automobile crash if the deceleration is no (a) Calculate the force on a 70 kg person accelerating at this rate. (b) What distance is travelled if they are brought to rest at this rate from 90 km/hr?

Q: 1. Consider a child holding a helium balloon in a closed car at rest. What would the child observe…

A: Part A: Initially the child and the balloon are at rest , when the car suddenly accelerates from…

Q: 6. A skier wishes to build a rope tow to pull herself up a ski hill that is inclined at 15° with the…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: 5. An old rope can now only safely suspend 120 kg. When the rope is tied to a beam, it hangs down…

A:

Q: 3. Only one force acts on an object. Can the object have zero acceleration? Can it have zero…

A:

Q: A car is traveling along at 20 m/s when it suddenly slams on its brakes. If the mass of the car is…

A: It is given that, u=20 m/sm=1000 kgF=2000 N

Q: )A car has a mass of 1300 kg. It can accelerate ) Calculate the acceleration of the car.

A:

Q: 2. A rocket at rest that has a mass of 2 kg. It achieves a speed of 200 m/s at launch. If the engine…

A: *As per the bartleby guidelines we can answer only one question if the given questions are…

Q: A 50kg person is traveling at 100km/hr. a) What's the force on him/her if he/she decelerates 200…

A: Given , Mass of person, m = 50 kg Initial velocity, u = 100km/hr = 27.78m/s A) acceleration =…

Q: 20. Suppose a 60.0-kg gymnast climbs a rope. (a) What is the tension in the rope if he climbs at a…

A: Part-a Given: Weight of the gymnast m = 60 kg. Speed is constant.

Q: 3. A rocket is fired and during the cruise in the air the mass fulfils the following equation m(t) =…

A: Force is defined as the rate of change of momentum and with the help of calculus we have the formula…

Q: A space traveller weighs herself on Earth at a location where the acceleration due to gravity is…

A: Given data:  Acceleration due to gravity on earth g = 9.81 m/s2 Weight on earth (w) = 521 N

Q: O 600 Kg car coast from rest down driveway that is inclined 250 to the horizontal and a 20 m long.…

A:

Q: A car collides with a semi-truck head on with both vehicles travelling at 50mph. Which vehicle…

A: Given data: Car collides with semi-truck Required: Vehicle that exerts greater force

Q: 4. A spring balance calibrated for accurate measurements of mass on earth was brought to mars. The…

A: From the question it is given that: weight of rock on Mars = Wm = 14.7 NAcceleration due to gravity…

Q: 1. A 3.0-kg sprinter starts a race with an acceleration of 4.20 m/s?. What is the net external force…

A:

Q: A 9 kg object undergoes an acceleration given by a (4î- 3j) m/s? The magnitude of the resultant…

A:

Q: 14. A 3 kg shopping cart experiences a 12 N during a cart race. If the cart accelerates for 10 s,…

A:

Q: 1. For a short period of time, the frictional driving force acting on the wheels of the 2200-kg van…

A: We are given with force and mass of the van? From this we can find acceleration of the van. Using…

Q: 1. A tilapia is dropped by a hovering eagle. How far will the fish fall 2.0 s before the bird…

A: Given that, A tilapia is dropped by a hovering eagle. Initially, the fish was at rest, u = 0 We need…

Q: An object accelerates 3.0 m/s2 when a force of 6.0 newtons is applied to it. What is the mass of the…

A: mass we have to find out. acceleration a= 3 m/s^2 and force F = 6 N  use newton's equation of…

Q: E16.At a given instant in time, a 14.5-kg rock is observed to be falling with an acceleration of 5.6…

A: (b) To find magnitude and direction of gravitational force  Fg=mgFg=14.5×9.8Fg=142.1 N Direction is…

Q: Give the weight of the following objects: a. An object with a mass of 5kg b. An object with a mass…

A: Weight is measured as the force of gravity which is pulling the object downward. The weight depends…

Q: A 16 gram bullet is accelerated from rest to a speed of 543 m/s as it travels 30 cm in a gun barrel.…

A: Formula used

Q: 3. A motorcycle with a mass of 250 kg accelerates from rest to a velocity of 75 km/hr. over a length…

A: Mass = m = 250 kg Initial velocity = u = 0 km/h = 0 m/s Final velocity = v = 75 km/h = 20.83 m/s…

Q: When a force of 10N is applied to a body its acceleration is 2m/sz. The mass of the body is 5kg aO…

A: Answer:-    (a) 5 kg Given  Force (F) = 10 N  Acceleration of a body(a) = 2 m/s2  Mass of a body (…

Q: The maximum force that can be put on an egg without breaking it has been determined to be 15 N.  If…

A: Maximum Force= Fmax=15N acceleration=a= Fmax/m=15N/0.15kg=100m/s2.

Q: A 500 kg trailer being pulled behind a car is subject of a 100 Newton resistance force due to…

A: a)The required force at a constant speed,

Q: you are driving down the road and are speeding. You apply the brakes on your car until you slow down…

A: Impulse is given by,

Q: . A drag-racing car accelerates forward because of the force exerted on it by the road. Why, then,…

A: Here, f = frictional force F = driving force = Engine force W = weight R = Reaction force

Q: 4. An object with a mass of 6.0 kg accelerates 4.0 m/s? when an unknown force is applied to it. What…

A: The given data are: Here, m denotes the mass and a denotes the acceleration.

Q: 3. A 16 kg object is initially at rest. A constant force of 8.0 N is exerted for 4 s on that object.…

A: Given data: The mass of object is m=16 kg. Applied force is F=8 N. Time t=4 s.

Q: 2. The baggage truck A shown in the photo has a weight of 560kg and tows a 400kg cart B and a 295kg…

A:

Q: 1. An airplane has a mass of 35,000 kg and a take -off acceleration of 1.20 m/s2. what is the net…

A: Mass of the airplane m=35000 kg and take off acceleration on the ramp a=1.2 m/s2. We need to find…