A person is falling from a certain height. Which of the following is likely to happen? a) If he falls on cement floor, he gets more injuries b) If he falls on a heap of sand, he receives less injuries c) He gets the same injuries in both the cases d) He is unaffected

Q: A person is standing in an elevator. In which situation he finds his weightless? a) When the…

A: Option b

Q: The magnitude of the force the chair exerts on me is

A: Explanation : here we have to use the Newton's third law, which states: that every action has equal…

Q: Two objects one having three times the mass of the other, are dropped from the same height in a…

A:

Q: A box weighing 100 N made of Copper is pushed on a horizontal surface made of steel. Using the…

A: Given: weight of box W = 100 N cooper : box steel  : table known:

Q: Two blocks of masses m1 and m2 are piled as in the diagram. A rope is passed around a pulley and…

A:

Q: Two blocks started to move from the position in the figure. Block A moves in a horizontal and…

A:

Q: A dresser is being pushed by one person and pulled by another(as shown) such that is slides across…

A:

Q: D) What is the force in which the ground exerts on the block? E) What is the force in which the…

A: Given data The first force is F1=20 N The angle of the first force is, θ1=30o The second force is…

Q: The driver of a 1200 kg car steps on the brakes on a dry horizontal concrete roadway. Determine the…

A: Total mass = m= 1200 kg Co efficent of friction = 0.5 Frictional force between each tire= ?

Q: A box of mass 10 kg sits on a frictionless table. You push down on the box at angle of 30° with a…

A:

Q: 1) Three blocks A, B and C are connected by two ropes with tensions T, and T2. Blocks A and B weigh…

A:

Q: A ball moving with a velocity of 5m/s in the east direction, is acted upon by a pair of balanced…

A: According to newton's first law of motion, an object at rest stays at rest and an object in motion…

Q: Problem 3: A truck pulls a crate with a mass of 500 kg. The horizontal component of the tension of…

A: Given Data :mass of crate m = 500 kgAcceleration a = 2 m/s2Horizontal component of tension Tx = 2622…

Q: Suppose you had a 5.00 kg sack of sugar and a bathroom scale. If you took the scale into an elevator…

A: Given data: Mass of sack of sugar, m=5.00 kg Acceleration of the elevator, a=1.00 m/s2  The mass…

Q: Suppose you had a 5.00 kg sack of sugar and a bathroom scale. If you took the scale into an elevator…

A: Given: Suppose you had a 5.00 kg sack of sugar and a bathroom scale. If you took the scale into an…

Q: As the force acting on an object decreases, the acceleration of the object Select one: a. remains…

A: According to Newton's second law of motion, F = m a  Here a = acceleration            F = Force…

Q: Three blocks A, B and C are connected by two ropes with Tension T1 and T2. Blocks A and B weigh 25N…

A:

Q: If an object is not moving, does that mean that there are no forces acting on it? Explain with…

A: This is not necessarily true that if the object is not moving then there is no force acting on the…

Q: An object has a mass of 4 kg and is moving with acceleration a= 5i -j. What is the magnitude of the…

A:

Q: 4) You are driving an older car that doesn't have antilock brakes. Your initial speed is 25 m/s. The…

A:

Q: 37. A standing person pushes a nearby chair which then slides along the floor. The chair and person…

A: A standing person pushes a nearby chair which then slides along the floor.The chair and person begin…

Q: 1. It is easier to keep a heavy object sliding along the ground than to get the object to begin to…

A: Static friction is the frictional force that keeps an object at rest. fs = µs N  Kinetic friction is…

Q: 9. A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on the pole, thus…

A: SOlution: as given that As he speeds up, he tightens his grip on the pole, thus increasing the…

Q: A 60 kg person stands on a bathroom scale in an elevator. What does the scale read when the elevator…

A: Given:-  The mass of the object is m = 60 kg. it is on the elevator  Find:-  a) what does the scale…

Q: A 20-kg mass slides down a flat hill that makes an angle of 10° with the horizontal. If friction is…

A: Given  M = 20 kg  g = 9.81. Angle (a) = 10°

Q: nurse pushes a cart by extending a force on the handle at a downward angle 30° below the horizontal…

A:

Q: A person will feel weightless whenever Show answer choices A they are in a free-fall environment…

A: Required : The correct option.

Q: A horizontal force F is applied to a block on a horizontal surface with friction. The magnitude of F…

A: Data provided:  A horizontal force F is applied on the block Magnitude of F gradually increases from…

Q: An object of mass m is at rest on an inclined surface. The only forces acting on it are its own…

A: Given data: Mass of the object = m Friction force = F Need to determine the magnitude of the normal…

Q: ng on the bicycle, and their sum is zero. re approximately parallel to the velocity. e approximately…

A: Given: A correct statements are shown as,

Q: Which of the following statements is always true? a)?If an object is moving, an unbalanced force…

A: Given Differents statement are given We have to choose the correct option from given options.

Q: wo forces act on an object.  The magnitude of the net force acting on the object a) Equals the sum…

A: The summation of all forces gives the net force acting on an object. The forces could be negative or…

Q: A loaded sled with a weight of 500 N slides down a frictionless incline with an acceleration of 2.0…

A: Given Weight of the sled is W=500 N Acceleration of the sled is a=2.0 m/s2   We have to find the…

Q: A box weighing 100 N made of Copper is pushed on a horizontal surface made of steel. Using the…

A: Given : A box weight = 100 N            Coefficient of friction of copper = 0.53

Q: An object on a rope is lowered at a steadily decreasing speed?  Which is true? a) The rope tension…

A: Assume a situation in which an object of weight W on a rope is lowered at a decreasing speed such…

Q: A person standing under an umbrella experiences rain, which later turns to hail. Is the force…

A:

Q: A boat moves at a speed of 20 m / s when the water is at rest. The boat needs to make a round trip…

A:

Q: À sprinter accelerates at the beginning of a 100-meter race and then tries to maintain a maximum…

A: After the sprinter reaches maximum speed, she maintains the same speed throughout the rest of the…

Q: A 30-kg box is being pushed along a horizontal surface. The coefficient of static friction between…

A: Find the horizontal exerted on the box. Fh=F+Ffr=ma+mgμk

Q: A 10-kg mass slides down a flat hill that makes an angle of 20° with the horizontal. If friction is…

A: Mass M = 10 kg  Angle with horizontal = θ = 20 degree. We need to find the resultant force.

Q: It is more difficult to walk on a sandy road than on a concrete road because:   A. sand is soft and…

A:

Q: Two blocks are connected by means of a massless rope and there is no friction. A) find acceleration…

A: A force acts on a system of two blocks connected by a massless and frictionless rope.  So, to…

Q: You lift a bucket by a string. The bucket travels upward at a constant speed. The upward tension in…

A: We lift a bucket by a string. The bucket travels upward at a constant speed. We need to comment on…