When you stand still on the ground, how large a force does the ground exert on you? Why doesn’t this force make you rise up into the air?

Q: Calculate the maximum allowable force that can be applied to stop a 1000 kg vehicle if the maximum…

A: Given:Mass, m = 1000 kgMaximum allowable acceleration, a = 2.5g = 2.5 x 9.8 = 24.5 m/s2.

Q: Why do you lurch forward in a bus that suddenly slows? Why do you lurch backward when it picks up…

A: We lurch forward in a bus that suddenly slows, as at the instant the bus slows, body still keeps…

Q: A ball is thrown up into the air. Ignore air resistance. When it is rising and reaches half of its…

A: Given : A ball is thrown up into the air. To determine : Net force when the ball reaches half of its…

Q: If the falling body had been given an initial downward push instead of being only released would the…

A: Firstly we have to understand some basic terminology for better understanding of the above problem.…

Q: If an object is in motion, why can’t you conclude that it must be experiencing a net force?

A: If an object is in motion, it is not mandatory that the object will experience a force. When an…

Q: A rock is suspended from a string; and it accelerates upward. Which statement is true concerning the…

A: The net force is given by the Newton's second law.  Net force = mass x acceleration

Q: The equilibrium rule, Σ F = 0, which means “the sum of all the forces is equal to zero”, applies to…

A: The equilibrium rule, Σ F = 0, it state that the sum of all the forces is equal to zero or we can…

Q: wo blocks are positioned on surfaces, each inclined at the same angle of 47.7 degrees with respect…

A: GivenAngle, θ=47.7°Mass of black block, M=7.01 kga=1.5 m/s2

Q: How does a helicopter get its lifting force?

A: The helicopter gets the lifting force by pushing the air downwards and it gets the thrust from the…

Q: A racing car and a moving van are both traveling at 40 km/h. Which of the two vehicles will require…

A: Given, a racing car and a moving van are both travelling at an initial speed, v1=40 km/h. and,…

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: What results when the net force on an object increases?

A:

Q: What acceleration does a baseball of mass 0.27 experience when hit by a bat if 180 N are exerted by…

A: Given  Mass = 0.27 kg Force When a baseball  hit by a bat(F) =180N We know that…

Q: A 5.0-kg and a 10.0-kg box are touching each other. A 45.0-N horizontal force is applied to the…

A:

Q: Suppose that you jounce up and down while weighing yourself on a bathroom scale. Which varies: the…

A: If a person is jouncing up and down while weighing yourself on a bathroom scale the normal force…

Q: f I were to fart, how much force would my fart need to exert to launch me 10 feet in the air? For…

A: let the upwards acceleration gained due to the fart be a let maximum height reached be H final…

Q: Mass of body is constant, but its weight is different at different places.Why?

A: Weight is given by,

Q: What does Newton's 2nd Law state? O An object at rest stays at rest. An object in motion stays in…

A: What does newton's second law suggest .

Q: The of the tension force of the string is: Choices: greatest in I greatest in II greatest in III…

A: For Equilibrum forces must be balanced

Q: Is it possible to utilise an elastic rope that can support the weight of an 860 kg automobile at…

A: in this question we use elastic potential strength .

Q: . Since a bucket of water is “weightless” in space, would it hurt tokick the bucket? Explain.

A: A bucket in space

Q: Why does a bungee jumper feel weightless during the jump?

A: A bungee jumper feels weightlessness when he jumps the platform. When the jumper is standing on the…

Q: Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an…

A: The force on an object is its mass m times its acceleration a.

Q: As you stand on a floor,does the floor exert an upward force against your feet? How much force does…

A:

Q: A block rests on an inclined plane with enough friction to prevent it from sliding down. To start…

A: When the block is at rest on the inclined plane, the component of its weight along down the incline…

Q: A net force is acting on a body; therefore the body is a) being accelerated  b) losing mass c)…

A: According to Newton's 2nd law, acceleration of a body is equal to net force divided by mass. Hence…

Q: What are some differences between the forces acting on a person when they are doing a squat vs a…

A: SQUAT:- Squatting is a popular exercise that targets the muscles in the legs, lower back, and core.…

Q: A twelve-pound bowling ball is currently in equilibrium. Which one of the following statements is…

A: Solution as

Q: What does Newton's 2nd Law state? O An object at rest stays at rest. An object in motion stays in…

A: Newton's second law states that net force on a object equals the object's mass multiplied by its…

Q: Why does a heavy parachutist fall faster than a lighter parachutist who wears a parachute of the…

A:

Q: How much force would a car’s tires need to provide to accelerate an 1800 kg car at a rate of 4.0…

A:

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

A: The net force on an object is zero

Q: A body begins to slide over the surface of another, when pulled with a force of 10 N, if we pulled…

A: Option C is the right answer  9N

Q: You are weightless when you are A. In free fall B. Without a support force C. Infinitely away from…

A:

Q: Your empty hand is not hurt when it bangs lightly against a wall. Why does it hurt if you are…

A: From newton's 2nd law we have,

Q: What is the net force experienced by a 2N object sitting on a table with a 5 N object on top of…

A: Consider the free-body diagram for the given objects as follows.

Q: 7.25. What force does block A exert on block B in Ans. 15.0 N Fig. 7.13? 6 kg 2 kg 45 N A Figure…

A:

Q: You’re exploring a cave. Standing in a low cavern, you steady yourself by pushing straight up on the…

A: When we stand  in a low cavern exploring a cave and steady ourselves by pushing straight up on the…

Q: How does a helicopter gets its lifting force?

A: the helicopter gets the lift by pushing the air downwards and it gets the thrust from the reaction…

Q: friend tells you that since his car is at rest, there are no forces acting on it. How would you…

A: Given:Friend tells you that since his car is at rest, there are no forces acting on it.Now,Explain:I…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!