Consider the following controls in an automobile in motion: gas pedal, brake, steering wheel. What are the controls in this list that cause an acceleration of the car? (a) all three controls (b) the gas pedal and the brake (c) only the brake (d) only the gas pedal (e) only the steering wheel

Q: Two blocks each weighing 25 N are connected to the ends of a light string which is passed over a…

A: Solution: given that m1=m2 = 25 kg

Q: Alice is pushing a 20 kg cart to the left, Bob is pushing back to the right. The cart is moving at a…

A: Alice is pushing a 20 kg cart to the left, Bob is pushing back to the right. The cart is moving at a…

Q: You merge onto I45 and catch up with the traffic. On a very flat and straight stretch of the…

A: Ans 1 Yes. When the net force acting on the body is zero, then the body is at equilibrium. The car…

Q: r3 r2 ri m1 m3 m2

A: The value of m3 = 13.078 kg

Q: The figure shows a container of mass m1 = 1.4 kg connected to a block of mass m2 by a cord looped…

A:

Q: Under what condition(s) will an object be in equilibrium? If the object is either moving with…

A: A object is claimed to be in equal state  if the net force acting on the object is nought(0). By…

Q: The student, whose mass is 68 kg, gets on a ferris wheel rotating at a constant speed. When the…

A: Given : mass of the student, m=68 Kg Reaction force by the seat at the top point, R=556 N…

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 10.0 kg and the…

A: Given: The mass of the block A is 10 kg. The coefficient of the kinetic friction is 0.24. The angle…

Q: Two people are sitting on playground swings. One is pulled back 4 degrees from the vertical and the…

A:

Q: It is not possible to see very small objects, such as viruses, using an ordinary light microscope.…

A: Given:- the xy plane with initial velocity vi =v i . As it passes through the region x=0 to x=d, the…

Q: A race car driver is told that her new tires will increase the frictional force between the tires…

A: Let the original velocity = u The final velocity = v The initial coefficient of friction = μkLet the…

Q: Two small cylindrical plastic containers with flat bottoms are placed on a turntable that has a…

A: To determine: Out of both the given canisters which canister will fall off first or they will fall…

Q: Which of the following steps would most likely result in lowering the force of a collision? a…

A: By Newton's 2nd law, Force is given by, F=Change in momentumTime=∆pt=m(v-u)t

Q: Two ropes are connected to a 200 kg dinghy. Two brothers each take one rope and pull. When the…

A:

Q: Tired drivers should continue on to the nearest rest area or other facility. They shouldn't pull…

A: Tired drivers should continue on to the nearest rest area or other facility. They shouldn't pull…

Q: The 1.0 kg block in (Figure 1) is tied to the wall with a rope. It sits on top of the 2.0 kg block.…

A: Given: The mass of the upper block is m1 = 1 kg The mass of the lower block is m2 = 2 kg The force…

Q: ou are exiting a highway and need to slow down on the off-ramp in order to make the curve. It is…

A: Frictional force of mass m with coefficient of static friction μ, =μmg Centripetal force of mass m…

Q: A car starts from rest and is traveling at 60 mph after 15 seconds. The driver immediately lifts…

A: As V=Vi+at S=Vit+1/2at2

Q: A biomechanics forensics expert is attempting to determine the events that led to an automobile…

A:

Q: Consult Multiple Concept Example 10 in preparation for this problem. Traveling at a speed of 12.4…

A:

Q: The figure below shows two boxes connected to each other by a light rope that passes over a pulley…

A:

Q: A cow is pushing its baby from side of the farm to another. The floor of the farm is not…

A: we know that the net force is equal to the product of the mass and acceleration. the acceleration is…

Q: There are nine books in a stack, each with a weight of 5.5 N. The coefficient of friction between…

A: Given that - Weight of each books Coefficient between the table and bottom book.

Q: Two blocks, m1=1 kg and m2= 2 kg are connected by a light string which passes over a massless and…

A:

Q: School bus drivers are extra careful when they cross railroad tracks. They stop before they cross…

A:

Q: Brake or turn? The figure depicts an overhead view of a car's path as the car travels toward a wall.…

A:

Q: The figure shows two blocks that are connected by a cord that passes over a frictionless pulley. The…

A:

Q: The figure shows two blocks joined by an ideal inextensible wire, passing through an ideal pulley.…

A: According to Newton's third law every action has equal and opposite reaction .In  action reaction…

Q: If two bodies contact one another without slipping, and the points in contact move along different…

A: Given : If two bodies contact one another without slipping, and the points in contact move along…

Q: PROBLEM 2: On an outdoor skate board park, a 40-kg skateboarder slides down the smooth curve skating…

A:

Q: Three blocks (as shown in the figure) are released from rest and they start to accelerate with a…

A: Step 1: here we have derived the equation of motion of the masses Step 2: here we have calculated…

Q: Two masses, mA-5.5 kg and mg-2.4 kg are attached to a rope that is hanging over a massless,…

A: In this problem we will use newton law of motion. Fnet =ma......(1) Let tension in rope be T.

Q: Leilani loads luggage into a Hawaiian Air passenger plane bound for Vegas using a conveyor belt…

A: Angle of inclination of the conveyer belt (θ)=20o Time take by the luggage to reach the top (t)=0.70…

Q: A car is being driven along a country road on a dark and stormy night at a speed of 14 m/s. The…

A: Given information: The initial velocity of the car, u=14 m/s The distance from the tree where the…

Q: A 50.0 kg girl and a 100 kg boy, stand on a frictionless frozen lake at a distance 6.0 m apart.…

A: mass of girl = 50 kg mass of boy = 100 kg distance between girl and boy = 6 m force exerted by boy…

Q: e m e kN 9 m A.................... 12 m 12 m e kN e kN 9 m The commercial airliner is drawn here…

A:

Q: car starts from rest and accelerates at a constant rate until it reaches 90 mi/hr in a distance of…

A:

Q: A 2100-kg Jeep travels along a straight 400-m portion of highway (fr constant speed of 10 m/s. At B,…

A:

Q: During a brake test, the rear-engine car is stopped from an initial speed of 100 km/h in a distance…

A: Initial speed Final speed Total traveled distance

Q: A 1000-kg elevator is rising and its speed is increasing at 3 m/s². The tension force of the cable…

A: Given that Mass of the elevator (M) =1000kg Acceleration (a) =3m/s2 Acceleration due to gravity (g)…

Q: Phil is trying to dunk a basketball and leaves the ground with a vertical velocity of 3.5 m/s. a)…

A:

Q: g up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between…

A: GivenAngle, θ=15°Initial velocity, u=30 m/sCoefficient of static friction between the tires and the…

Q: through the action of a single cable. The elevator has a weight of 2000 N. When the elevator is…

A: Given:-  An elevator’s motion is through the action of a single cable. The elevator has a weight of…

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!