With fuel prices for combustible engine automobiles increasing, researchers and manufacturers have given more attention to the concept of an ultralight car. Using carbon composites, lighter steels and plastics, a fuel-efficient car can be manufactured at 540 kg. How much less does an ultralight car weigh compared to a 1450-kg Honda Accord (2007)?

Q: A frustrated farmer is trying to move a large rock from his land. The stone has a mass of 9.00×102…

A:

Q: A arrow of mass 0.01 kg moving horizontal suddenly strikes a block of wood of mass 8.6 kg that is…

A: Mass of the arrow is m = 0.01 kg Mass of the wooden block is M = 8.6 kg Length of the string is h =…

Q: Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can…

A:

Q: Problem 5. A box of mass m is sliding across a table (H = 1.5 m tall) with an initial speed of vo =…

A: Step 1: Given  Step 2: Calculation for part (a)  Step 3: Calculation for part (b)  Step 4:…

Q: You set up a 20 cm tall ramp on a 75 cm tall table. The ramp is inclined at 30° to the horizontal.…

A: In this question  we use free body diagram of m1 block at the top of the incline and get equations…

Q: A 1695 kg car accelerates from 4.0 m/s for 3.9 s and reaches a velocity of 18.0 m/s. Ignoring…

A: Given:mass, m = 1696 kgInitial velocity, u = 4 m/sFinal velocity, v = 18 m/sTime, t = 3.9 s

Q: A 50.1-cm-by-50.1-cm checkerboard has a mass of 152.7 g. There are four 21.9-g checkers located on…

A:

Q: A 3 kg box is displaced at a rate of 5 m/s. How much force is required to stop the box in 0.8…

A: The acceleration is given by  a =v - ut where,  v is the final velocity, u is the initial velocity,…

Q: A driver in a 1000.0 kg car traveling at 29 m/s slams on the brakes and skids to a stop. If the…

A:

Q: While walking through an orchard on a windy day, you see a 255 g apple hanging from a branch 10. m…

A: Mass of apple = 255 g  = 0.255 Kg  Initial height of apple = 10 m  Final height of apple where it is…

Q: At a testing center they want to see the damage caused by head-on collisions that stop both vehicles…

A:

Q: cat of 20 kg mass is running at 8.0 m/s toward a stationary skateboard with a mass of 2 kg. The cat…

A:

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: Consider a vertical loop in the roller coaster ride shown in the figure. Suppose you are designing…

A:

Q: Velomobile Characteristics Mass: 29 kg in addition to the rider Aerodynamic drag: F, = 0.0492 V*…

A:

Q: A driver in a 2290-kg car car traveling at 42.7 m/s slams on the brakes and skids to a stop. If the…

A:

Q: A 40,000-kg cargo plane on board an aircraft carrier is to deliver relief supplies to a far-flung…

A:

Q: A dog weighing 36 kg, is standing on a flatboat so that he is 23 m from shore. He walks 16 m on the…

A: It is given that,

Q: Emma and Katie are racing along in their new wagon. Upon reaching the bottom of the hill traveling…

A: Given Katie speed at the bottom of the hill = u = 13.2 m/s Distance between Katie and her teddy bear…

Q: The towers holding small wind turbines are often raised and lowered for easy servicing of the…

A:

Q: A person with a mass of 80kg while dressed in a jump suit jumps from a plane while parachuting. They…

A:

Q: Jerome has made the system in the picture. The boy knows the mass of the first block is 3.00 kg. The…

A: Given, The mass of the block is m1=3kg The mass of the ball is m2=2kg mass of the pulley is…

Q: In the figure below, a small cart of weight W starts from rest at A and rolls without friction along…

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A: The collision of the cars is an inelastic collision as the cars get locked into each other. Let the…

Q: A dart of a mass of 20 g hits a target while traveling horizontally with a velocity of 5 m/s. The…

A: The mass of the dart ,m=20 g=20×10-3 kg The initial velocity of the dart u=5 m/s The distance…

Q: We are now going to consider the transport of the grains of pollen in the air. A grain of pollen…

A: why the grain of pollen will reach a limiting speed in its free fall.

Q: Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the…

A: Apply newton’s second law of motion along the motion of the lift, and substitute 95kg, for m,…

Q: Jason takes off down a 40 m high hill with a slope inclined at 20° on his jet powered skis with a…

A:

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

A:

Q: A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.6 m/s.…

A:

Q: A 5.0 g bullet moving 325 m/s is shot into a 1.25 kg block, which slides for 1.35 seconds across the…

A: Given data: Mass of bullet (m1) = 5.0 g Velocity of bullet (V1) = 325 m/s Mass of block (m2) = 1.25…

Q: The track near the top of wonderland's roller coaster is looped with a diameter of 18 m. When you…

A:

Q: You have been chosen as the test subject for the newest attraction at Disney. This attraction is a…

A:

Q: Bank robbers have pushed a 1000 kg safe to a third-story floor-toceiling window. They plan to break…

A: Let M denotes the mass of the safe, m denotes the mass of the furniture, f denotes the friction…

Q: A person with a mass of 50 kg is driving her car at a velocity of 20 m/s. The car is involved in a…

A: Write the impulse-momentum equation and rearrange the equation of obtain the expression of the time.…

Q: A hockey puck with mass 0.166 kg is pushed across the ice with a constant force of 0.89 N. The…

A:

Q: Lark Brandt won a world fastest smash competition in the early 2000s. His Ping pong Ball  achieved a…

A:

Q: You have been chosen as the test subject for the newest attraction at Disney. This attraction is a…

A:

Q: In the figure, the pulley is ideal. M2 is 11.3 kg and the table has no friction. The blocks are…

A: Given that, initial velocity= 4 m/s  final velocity = 9 m/s  Distance moved = 7.26 m

Q: One student pulls a car with 20 N to the East. Another student pulls the car with 30 N to the West.…

A: As forces are in opposite direction : Net force = Fnet=30-20=10 Na=2m/s2