After an object is propelled into the air at an initial speed of 20 m/s, as it rises through air.. which statement is false?  1) The object is gaining KE and losing GPE 2) it will reach its peak height in 2 seconds  3) the only force acting on it is weight (gravitational force)

Q: Solve for the weight of the log if load at A is twice the load at B. (Weight of empty truck =…

A: A graphical representation of all the forces and moments, including magnitude and direction, acting…

Q: 115. An 800-newton person is standing in an elevator. If the upward force of the elevator on the…

A: Given,

Q: the distance travelled at varcous time t klhat was the accelerateom of fhe cae when t= 2.4 and…

A: we know that,acceleration, a=dvdt=vf-vitf-tiwhere vf is final velocity vi is initial velocity tf is…

Q: Based on the graph, what is the velocity for best L/D in calm air V(kts) 30 60 90 120 150 180 -1…

A: As, the sink ratio is defined as, Vz=v×DL where V is the velocity, D is the drag and L is the lift…

Q: 5. An airplane with a weight of 11,000 N cruises at 180 km/h in level flight 2300 m above the…

A: Given: Weight of plane =11000 N Speed v =180 kmph

Q: 3. A body of mass 2 kg is supposed to have an initial velocity of 10m/s and is then pulled 4 meters…

A: Given Data : The mass of the body is given as m = 2Kg. The initial velocity of the body is given as…

Q: 11. A car has a speed of 90 km/h and a mass of 7 000 kg. What is its kinetic energ

A:

Q: A 2kg body has an initial velocity of 10m/s and is then pulled 4 meters by a force of magnitude 25N…

A:

Q: An 82-kg person is standing on a scale in an elevator. What is the reading of the scale in newtons…

A:

Q: 3. There is a common misconception that astronauts in orbit seem to float because "there is no…

A:

Q: 20) A 15 Newton force is applied to a mass M that is adjacent to a wall, as shown. If the mass is 2…

A: Given data:  Force applied to the mass (F) = 15 N Mass (m) = 2 kg Required: The force exerted by the…

Q: The following three forces act on an object: F1=( i−6 j) N , F2=(−2 i+ k) N , and F3=( i+4 j−2 k) N.…

A:

Q: Angle of the slope is 40 degree The coefficient of kinetic friction is 0.04 the mass of the skier…

A: given that, Angle of the slope is 40 degree coefficient of kinetic friction is 0.04 mass of the…

Q: . There are about 160,000 road accidents in Canada every year. According to the Transportation…

A: (a) During collision of two vehicles  vehicle gets stopped instantly but our bodies remain in motion…

Q: 2. Determine the maximum mass of the lamp that the cord system can support so that no single cord…

A:

Q: . As you read this, you are most likely sitting quietly in a chair. Can you conclude, therefore,…

A: We know that motion is completely a relative term. The motion is not absolute and depends on frame…

Q: 5. An old rope can now only safely suspend 120 kg. When the rope is tied to a beam, it hangs down…

A: Given value--- An old rope can now only safely suspend 120 kg.  length of ropr = 12.0 m. We have…

Q: PROBLEM SOLVING Answer as requinnd 1 How much potent ehergy dos a car gainta crane Hts the car with…

A:

Q: Skydiving If a body of mass m falling from rest under the action of gravity encounters an air…

A:

Q: 5. (4) Fill in the missing parts of the table. Action A volleyball is served. A rocket is launched…

A: Given, Action and reaction forces on objects.

Q: 4. A block of mass m [kg] is released a distance L [m] from a massless spring with force constant k…

A: Law of Conservation of Mechanical Energy: The total amount of mechanical energy, in a closed system…

Q: Draw force diagrams for the ball (a) while it is falling and (b) while it is being caught. (c)…

A:

Q: A car has a drag coefficient Ca = 0.30, a frontal area of A = 1.9 m² and a mass 1.2 tonnes. The…

A: Given, drag coefficient, Cd = 0.30frontal area, A = 1.9 m2density of air is, ρ = 1.2 kg.m-3speed of…

Q: Starting from rest, a 2-kg body acquires a speed of 8 m/s in 2 seconds. The net force acting on the…

A: The expression for the acceleration is given by, a=v-ut Use the given values, a=8 m/s-02 s=4 m/s2

Q: 3. The organizers of a snowboarding competition have decided that they need to get an engineer to…

A:

Q: Part A On an aircraft carrier, a jet can be catapulted from 0 to 140 mi/h in 1.95 s . If the average…

A: Answer Given  Initial velocity v0 = 0 m/s Final velocity vf = 140 mi/hr = 62.58 m/s Time t = 1.95 s…

Q: 2. Skydiving If a body of mass m falling from rest under the action of gravity encounters an air…

A:

Q: A hot air balloon is descending at 10[m/s]. To slow the rate of descent the pilot drops a weight…

A:

Q: Fp = Fg b vž = mg mg Vr = b Mr. Aikins dropped from a height of 7.7 km. In less than 20 seconds he…

A: (a) Given: The height from which Me Aikins dropped is 7.7 km. The density of air at sea level is…

Q: What is the greatest mass of groceries that can be lifted safely with this bag, given that the bag…

A: Express the relation between force, mass and acceleration. F=ma Here,  The force on the bag is F.…

Q: A 7700-kg helicopter accelerates upward at 0.90 m/s² while lifting a 1150-kg frame at a construction…

A:

Q: 30. A mass m falls under gravity (force mg) through a liquid whose viscosity is decreasing so that…

A: According to this law, the net force acting on an object is equal to the product of its mass and net…

Q: A ship of mass 3 x 107 kg initially at rest, is pulled by a force of 5 x 104 N through a distance of…

A: Here given that,    Mass is 3×107 kg   Force is 5×104 N   Distance is 3 m

Q: 11. In given situation frictional force for the surfaces is :- F=60N 30° u=0.5 6kg (1) 30 N (2) 15 N…

A: Given value--- mu = 0.5 . m = 6 kg. angle = 30 degree. force = 60 N. We have to find--- Friction…

Q: 3. Suppose that an ideal frictionless inclined plane has an angle of inclanation of 0=5° with…

A: Answer  option(e) 0.854

Q: 1.A ship of mass 3 x 107 kg initially at rest is pulled by a force of 5 x 104 N through a distance…

A:

Q: 3. A 500-kg block with an initial speed of 90 cm/sec slide along a horizontal table top against a…

A: Mass of the block m=500 kg, initial speed of block u=90 cm/s=0.9 m/s and frictional force applied in…