A truck of mass 7 tonnes was moving with a velocity of 110 km/hr. The brakes were applied to bring the truck to 20 km/hr in 5 seconds, Determine the uniform force exerted by the brakes. Also find the velocity it will reach if the same force is applied in the same direction for 650 m and also find the time taken.

Q: A force of 200N is applied to two blocks with masses m1 = 3kg and m2 = 2kg find the acceleration and…

A: Given that; Force applied on the two blocks, F=200 N Mass of block 1, m1=3 kg Mass of block 2, m2=2…

Q: Ignoring friction, If an equal force is applied to a 1 kg box and a 10 kg box, the acceleration of V…

A:

Q: A block is pushed up a 30° incline by an applied force as shown. If F = 90 N and M = 4 kg, and μk =…

A: Force applied to the box is F = 90 N Mass of the block is M = 4 kg Coefficient of kinetic friction…

Q: Find the law of motion of a body acted upon by a constant force F if at time  the body is at rest at…

A: In science, Newton's first law is also known as the law of inertia. The first law says that an…

Q: Assuming the mass is the same, how does the acceleration of an object depend on the force exerted on…

A: in this question  we discussed  second  law of motion.

Q: Illustrate and solve the given. A shopper in a supermarket pushes a loaded cart with a horizontal…

A:

Q: A 2200 kg car, initially travelling at 80.0 km/h West, slams on the brakes and it comes to rest over…

A:

Q: A body at rest or in uniform motion is one that undergoes acceleration is in equilibrium O is acted…

A: Given : A body is in rest or uniform motion .

Q: A particle acted upon by a balanced force system has no A velocity B displacement C force D none E…

A: If a particle is acted upon by a balanced force system then the net force acting on the particle is…

Q: When a force is applied to the more massive block, the net force on the block can be given as,

A:

Q: Suppose an object is accelerated by a force of 100 N. Suddenly a second force of 100 N in the…

A: The option (c) is the correct answer.

Q: A dragster reaches 350 km/h from rest in 6.2s. If the car is 800 kg and generates a driving force of…

A: Initial speed of the car is u = 0 m/s Final speed of the car is v = 350 kmph = 97.22 m/s Time taken…

Q: Two robotic arms are used to push boxes from one place to another across a smooth surface (assume…

A: Required : Which arm will make the boxes reach a higher speed.

Q: The front 1.20 m of a 1 400-kg car is designed as a “crumplezone” that collapses to absorb the shock…

A: Part A:

Q: The applied force P is equal to 160N and the mass of the box is equal to 20 kg. Determine the…

A: Given:- The applied force P = 160 N  The mass of the box m= 20 kg  The coefficient of the kinetic…

Q: Accident analysis has led experts to believe that Princess Diana experienced a deceleration rate of…

A: At the time of her accident, Diana experienced a deceleration rate of 700 m/s2. This deceleration…

Q: A block with a mass of m rests on a frictionless surface and is subject to two orces acting on it.…

A: Solution: We are given a block with a mass of m rests on a frictionless surface and is subject to…

Q: A 2 lb hammer travelling at a speed of 15 ft/s strikes anail and drives it 0.75 inor inches into a…

A: Since the hammer is moving it possesses kinetic energy which is given as k=0.5×m×v2---(A), So in…

Q: the net external force on the 24-kg mower isstated to be 51 N. If the force of friction opposing the…

A: Mower mass, m = 24 kg Net external force on mower, Fnet = 51 N Force of friction, f = 24 N (always…

Q: Calculate the force acting on a particle. Mass 100 kg moving in straight line

A:

Q: when sara is running, the maximum vertical ground reaction force under her foot is 1200 N.  At that…

A:

Q: A crate of mass 50 kg slides on a horizontal floor under the action of an applied horizontal force…

A: Mass of crate: m = 50 kg Horizontal force: F = 200 N Frictional force: f = 120 N

Q: Show that the acceleration of any object down an incline where friction behaves simply (that is,…

A: The magnitude of the friction force is given by the expression,

Q: The force exerted by the wind on the sails of a sailboat is Fsail = 430 N north. The water exerts a…

A: Given data The magnitude of the force in the north direction is: Fy = Fsail = 430 N The magnitude of…

Q: Forces of 15N and 10N are at an angle of 90degree each other. Find, by drawing the magnitude of the…

A: The resultant force is given by  F =P2 + Q2 + 2 PQcosA where, P and Q are the two force and A is the…

Q: When a car is parked in a parking space, the value of resultant force acting on the car is equal to…

A: When the car is parked in a parking space, the car is not in motion it is at rest.  The car is at…

Q: A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m, as shown in…

A: Given: mass of the block - M mass of the rope - m Horizontal pulling force- F

Q: If an applied force of 10 N directed at an angle of -30 degrees with respected to the +x direction…

A: The force 10 N is acting along at an angle of -30 degree with respect to the positive x axis. The…

Q: If the order of the barges of the preceding exercise is reversed so that the tugboat pulls the 3.00…

A:

Q: A crate of mass 50 kg slides on a horizontal floor under the action of an applied horizontal force…

A: (a) The acceleration  The forces that acts on the crate is the horizontal force that acts along the…

Q: Calculate the value of the distance traveled by a slider that weighs 100g and receives the force of…

A:

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

A: If there's one force acting on an object, it will create imbalance in the object and it will lead to…

Q: Find the resultant of the concurrent force system shown in Figure.

A: When there are two or more force acting on a body , then net force will be vector sum of individual…

Q: The force exerted by the wind on the sails of a sailboat is F, = 495 N north. The water exerts a…

A: ∑Fx= 245 N, ∑Fy = 495 N FR =(ΣFx)2 +(ΣFy)2  = 2452+4952 FR =60025 +245025 =3.05 x 105 N =552.31 N…

Q: In a trial, a dog generated an instantaneous ground reaction force that was 1.7 times the dog’s…

A:

Q: Find the tension in an elevator cable if the 1 500-kg elevator is descending with an acceleration of…

A:

Q: An 80.0 N horizontal force acts on an object with a mass of 4.00kg and is initially at rest. Find…

A: According to Newton's 2nd law, the force applied on a body is equals to mass of body multiplied with…

Q: 3.53 The resultant force of a concurrent force system is shown. Determine the magnitudes of the…

A:

Q: If the net force on an object is zero,

A: The net force on an object is zero

Q: What force (in Newtons) is necessary to keep a box of mass 62.0 kg moving with constant velocity if…

A: The friction force is given by  F = μk mg where, m is the mass, g is the gravity and μK is the…

Q: Two forces act on an 5 kg object: F1 = 60N applied at the origin in the direction of positive x-…

A:

Q: A net external force of 7.5 N is exerted upon a 4.65-kg object. If the object's initial velocity is…

A: Given that a net external force(FNet) of 7.5 N is exerted upon a 4.65-kg object. So, We have Where,…

Q: A block of mass M is pulled along a horizontal, flat, and smooth (no friction) surface by a rope of…

A: According to the Newton's second law,  Net force = mass x acceleration

Q: A 0.50 kg block slides across a tabletop with an initial velocity of 20 cm/s and comes to rest at a…

A: According to the work energy theorem, ∆K=W12mvf2-12mvi2=Ffdcosθ

Q: Only direct contact forces are measurable (true or false.)

A: Contact forces:- These are the forces between the two object which comes into play only when the two…

Q: Describe a situation in which one system exerts a force on another and, as a consequence,…

A: Newton's third law says for every action there is an equal and opposite reaction .But action and…

Q: A car of mass 230 kg moving at a speed of 30 km/hr is stopped by applying brake in 15 sec. Calculate…

A: The car is stopped in 15 sec. It means the final velocity of the car is zero. Therefore, applied…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: