Find the maximum speed of a car which can be safely driven along a curve of radius 100 m and the co-efficient of friction between the tyres and road is 0.2.
Q: A block of mass M = 4 kg on an inclined plane is pulled upwards by a force F = 100 N forming an…
A: Given: m=4kg, F=100N, ϕ=30°, μ=0.3, θ=45° Refer to the free body diagram of the block below :
Q: (a) How much gravitational potential energy (relative to the ground on which it is built) is stored…
A: Gravitational potential energy.
Q: A 9.6 kg ball is rolling at a speed of 3.8 m/s when it encounters a ramp. How high can it roll up…
A:
Q: A box of mass 7.5 kg has an initial velocity of vi down an inclined planed that is at an angle of…
A: Given Data: The mass of a box is, m=7.5 kg The angle of inclination is, θ=17° The coefficient of…
Q: (a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is…
A: Given mass(m)=7*109 kg height(h)=40 m
Q: (II) At an accident scene on a level road, investigators measure a car's skid mark to be 98 m long.…
A: Given data: Distance traveled (s) = 98 m Coefficient of friction (μ) = 0.38
Q: potential energy due to height is: P E h = m * g * h and kinetic energy is: K E = 1 2 m v…
A: Idea of doing this problem is first picturing the roller coaster. Applying conservation of energy…
Q: (a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is…
A: Gravitational potential energy = mgh U = 8×109 × 9.8 × 41 U = 3.21 × 1012 J
Q: (a) Calculate the force needed to bring a 1100 kg car to rest from a speed of 90.0 km/h in a…
A: mass of car = 1100 kg initial speed = 90km/hr = 90 * 5/18 = 25 m/sfinal speed = 0 m/sdistance =…
Q: The block shown has a velocity va = 25 m/s at A and a velocity va = 15 ms as it passes point B on…
A: Given: Initial velocity of block at point A vA=25 m/s. Velocity of block at point B vB=15 m/s.…
Q: . (III) A cyclist intends to cycle up a 7.50° hill whose verticalheight is 125 m. The pedals turn in…
A: Given that the mass of the bicycle and person combine is 75 kg. The vertical height of the hill is…
Q: A box of mass 7.5 kg has an initial velocity of vi down an inclined planed that is at an angle of…
A:
Q: A block slides down a frictionless inclined ramp and experiences no significant air resistance. If…
A: Please see the answer below
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A:
Q: Find the work done by a person weighing 160 lb walking exactly one revolution(s) up a circular,…
A: A person of weight F=160 lb is walking up a spiral staircase of radius r=4 ft and he rises up to a…
Q: (b) Suppose instead the car hits a concrete abutment at full speed and is brought to a stop in 2.00…
A: (a) Given that Mass of car(m) =800kg Speed( v) =85 km/h=85*5/18 m/sec Distance( d) =125m
Q: A body of mass 2 kg was dropped down from a height. If the KE attained by it is 400 J, find the…
A: Solution:-Given thatmass of body (m)=2 kgKE attained by the mass (KE)=400 J
Q: A car speeds up while the engine delivers constant power. Is the acceleration greater at the…
A: The expression of power is given by, P=Fv Here, F is the force and v is the velocity of the car.…
Q: (Figure 1) A roller-coaster car may be represented by a block of mass 50.0 kg. The car is released…
A: GIVEN Mass of block (m) =50kg height from block release=54 m radius (R) =…
Q: (a) Calculate the force (in N) needed to bring a 950 kg car to rest from speed of 90.0 km/h in a…
A:
Q: For the cases shown in Fig. , the object is released from restat the top and feels no friction or…
A: During free fall the acceleration acting on the mass will be acceleration due to gravity g=9.8…
Q: The gravitational work depends on path and elevation. True or false
A:
Q: cookie jar is moving up a 42 ° incline. At a point 59 cm from the bottom of the incline (measured…
A:
Q: (a) How much gravitational potential energy (relative to the ground on which it is built) is stored…
A: a) The expression for find gravitational potential energy is PE=mgh Substitute values in the above…
Q: A 50-kg skier with an initial speed of 13 m/s coasts up a 2.5-m-high rise as shown in the figure.…
A:
Q: (III) A child slides down a slide with a 34° incline, and at the bottom her speed is precisely half…
A: It is given that,
Q: (a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is…
A:
Q: (a) How much gravitational potential energy (relative to the ground on which it is built) is stored…
A:
Q: A cookie jar is moving up a 43 ° incline. At a point 50 cm from the bottom of the incline (measured…
A: Draw the free-body diagram of the cookie jar.
Q: (c) A large roller in the form of a uniform cylinder is pulled by a tractor to compact earth; it has…
A: Given, Diameter of the cylindrical roller = 180 cm mass = 10 kN Speed = 14.4 kph distance = 3 m
Q: The distance D (in feet) required for a moving vehicle to come to a complete stop on dry pavement is…
A: We use the kinematic relations to get the required relations and analyse the given case of how the…
Q: Use the friction t=p+6 to find the value of t when p=4
A: Given t=p+4 p=4 required:) value of t=?
Q: Imagine that a team of engineers wants to determine how a new car will perform on hills. The car has…
A:
Q: When a body moves with a constant speed along a circle ___________ a) No work is done on it b) No…
A: Option a
Q: (a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is…
A: mass (m) = 5 x 109 kg distance of the center of mass above the ground (h) = 28 m daily food intake…
Q: A train weighing 120 tons is pulled up a 2% grade. The train resistance is constant at 12 lb/ton.…
A: Given that:
Q: Askier tug operates on a slope 300 m long with an inclination of 15.00. The rope moves at 120 km/h…
A:
Q: How do you conduct an experiment that determines the efficiency of an inclined plane?
A: As per the answering guidelines, we will be answering the first question only. Kindly post the…
Q: A 0.40 kg small box starts from rest and slides down a frictionless curved surface ( ¼ of a circle )…
A: Ans 2 given U = αx3
Q: If the speed of a car is increased by 95%, by what factor will its minimum braking distance be…
A: Consider the initial speed of the car is u.
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