4. A square block of mass of 0.12kg is given an initial speed of v, 5.3 m/s. (a) If the coefficient of kinetic friction between the block and the floor is 0.11, what is the distance the block slides before coming to rest? (b) Find the time required for the block to come to rest. (c) What is the velocity at half the distance? (d) Graph the velocity vs time and the acceleration vs time for the block. Sketch and Label all the forces Define the coordinate axis for each mass.

Q: power mower does 8 x 104 J of work in 0.4 h. What power does it use

A:

Q: Rey is exerted a 500-N force to push the table across the 5meter floor. If he finished it in 10…

A: Given  Force, F = 500 N  Distance, D = 5 meter  Time ,T = 10 sec

Q: Claus, who hbs up the Os. Find S

A:

Q: Find Work done Force=5.54 N Displacement 0.2 m

A: Given data : Force=F Displacement=d   To find : Work done

Q: H. Solve the following numerical problems. 1. Calculate the work done In pushing a cart through a…

A: Given : d = 10 m F = 120 N

Q: d. What is the weight force on the crate? e. What is the net force on the crate? f. What is the…

A: (d) The weight of the crate is W=mg=40 kg9.81 ms2=392.4 N≈392 N

Q: Eplain work, power and energy. Also state an example for each explanation and give its S.I unit.

A: Work: When an object is subjected to a force and the object gets displaced in the direction of the…

Q: Mary 10 N of books into her house 15 m from her car. How much work was done?

A:

Q: A 1270-kg car moves at 24.0 m/s. How much work Whet must be done on the car to increase its speed to…

A: Given: Mass of car(m)=1270kg initial velocity(vi)=24m/s Final velcoity(vf)=35m/s

Q: A 26.0 kg crate is initially moving with a velocity that has magnitude 3.90 m/s in a direction 37.0"…

A: Work is same as the energy. The work done on crate to change its velocity to  6.30m/sec in a…

Q: What is the work done against gravity in lifting a 65-kg object through a distance of 12 m? Show…

A:

Q: TRUE or FALSE. Read and analyze each statement carefully. Click TRUE if the given statement is true,…

A: False since work done is given by W = F d cos@ where F = Force d = displacement @ = angle between F…

Q: 10. A force is applied to an object which undergoes a displacement. What can you conclude if the…

A: Work done= force × displacement × cosA , Where A is the angle between the force applied and the…

Q: 10. The power of a motor is 40 kW. At what speed can the motor raise a load of 20,000 N ? Ans. 2 ms

A:

Q: 3. A worker must slide a wooden crate across a wooden floor. The worker walks up to the crate…

A: From Newton’s second law of motion, Here, Fa is the applied force and Ff is the force of friction,…

Q: Calculate the power output needed for a 952-kg car to climb a 2.00° slope at a constant 33 m/s while…

A:

Q: a 10-N force. .2. A 10-kg book was pushed to the left with c distance of 5m. what is the work done…

A: Given : mass, m= 10 Kg; Force, F=10 N  Distance travelled , d= 5 m  Required : Work done by applied…

Q: Find the work done on raising a 50 if box though a height of 3 m.

A: Given : m = 50 kg h = 3 m

Q: 10. With the same given problem in no. 8, what is the normal force acting on the ground? a. 419.29 N…

A: we can simply draw the free body diagram of the problem to calculate the Normal force  Now clearly…

Q: You joined a “dogsled” race during your winter break. To start, you pulled the sled (total mass of…

A: Mass ,m= 85 kg Total force,F=195 N Angle of force, θ= 45⁰ Distance traveled, s=7 m

Q: 11. With the same problem in no. 8, calculate friction if its coefficient is 0.1. a. 30 N b. 32 N c.…

A: It is given that the force F=100 N is exerted on a mass, m=50 kg at an angle of θ=45°. Also the…

Q: A boy of mass 45 kg climbs a vertical rope 9 meters in length in 15 seconds with constant velocity.…

A: Given: The mass of the object is 45 kg. The vertical height is 9 m. The time interval is 15 s.

Q: Define the term work function

A:

Q: Find the displacement Work done=250 J Force=26 N

A: Given data : Work done=W Force=F   To find : Displacement

Q: A block of weight to 40.0 N sits on a frictionless inclined plane, which makes an angle 8-34,0" with…

A:

Q: A 1.00-MΩ voltmeter is placed in parallel with a 75.0-k Ω resistor in a circuit.…

A:

Q: Practice 1. How much kinetic energy does a 1250-kg car have if it's moving at 36 m/s? 2. A 0.5-kg…

A:

Q: Problem 5 Given a system of pulley below, block A has a mass of 50 kg. At point P it is recorded to…

A:

Q: 1. How much work is required for a mechanical hoist to lift a 9000. N automobile to a height of…

A: Given:-weight of automobile m×g= 9000N         Height to which it is lifted H = 1.800 m

Q: A force of F = 350 N is applied to the end at B. Determine the speed of the 15-kg block when it has…

A:

Q: 1 kW = ? A) 1000 W B) 10 W C) 100 W D) 10000 W

A: Watt is the unit of power. The power is defined as the work done in a unit time interval. The…