A gardener pushes a lawn roller through a distance of 35m. If he applies a force of 30N in a direction inclined at 55° downward from the horizontal, the work done by the gardener is

Q: Which of the following statement is incorrect? A. î × j = k B. k · j = î C. ĵ · j = 1 D. k × k = 0 А…

A:

Q: Distinguish between autonomous and accommodating balance of payment transaction..

A: Difference between autonomous and accommodating balance of payment transaction is shown below:

Q: 1. There are four identical ammeters with resistance r and a resistor with resistance R connected in…

A: Given. Four ammeters are connected in wheatstone bridge arrangment. Assume the current in A3 is…

Q: 10. In an attempt to break a world record, Laso Schaller dove from a platform taller than the Tower…

A: When he starts jumping from the platform, the initial velocity of him is zero.

Q: A stone is thrown at a cliff with a height of h.  If the stone is thrown with an initial speed of 42…

A: Given: The height of the cliff is h. The initial speed of the stone is 42 ms. The initial angle is…

Q: When a fan is switched from medium to high the fan blade accelerates from 24.0rev/sec to…

A:

Q: 10) Determine T1 and T2 in N. 45 T2 50 N

A: This is a case of equilibrium where total force at point A is zero. So all forces in opposite…

Q: 1. A bowling ball starts from rest and moves 300 m down the gutter in 22.4 seconds. a) What is its…

A: Given Data: The distance covered in the downward direction is: h=300 m The time taken to move down…

Q: 10. Mr. Mangan soars over a large group of zombies and is in the air for a total of 5 s. How high…

A: Given , Mr. Mangan is in the air for 5s. So he took 2.5 s to go up and 2.5s to go down. So from…

Q: Q3: A cheetah can accelerate from rest to a speed of 30.0 mis in 7.00 s. What is its its…

A: Given: Initial speed of Cheetah, u = 0 m/s Final speed of Cheetah, v = 30 m/s Time taken, t = 7 s

Q: Problem 7: A1.85-kg falcon catches and holds onto a 0.67-kg dove from behind in midair.

A:

Q: How long does it take a baseball to travel the 18.4 m from the pitcher's mound to home plate when…

A: Given data The distance traveled by the ball is given as d = 18.4 m. The speed of the baseball is…

Q: 2. A long distance runner is on the last leg of the race. The 71.0kg runner is jogging at 1.42m/s…

A: Kinematics.

Q: A cheetah can accelerate from rest to a speed of 32.0 m/s in 7.00 s. What is its acceleration? O224…

A: Given data:  Initial velocity (u) = 0 m/s Final velocity (v) = 32.0 m/s Time (t) = 7.00 s Required:…

Q: E7.A hiker covers a distance of 1.26 km in a time of 0.5 hours. What is the average speed of the…

A: Average speed is given by   Where S = total distance covered, t = total time taken

Q: You are riding a donkey that gets scared by an earthquake. If the donkey was originally traveling at…

A: Given: The initial velocity of the donkey is 12.5 m/s. The final velocity of the donkey is 13.7 m/s.…

Q: A 4 kg bowling ball is dropped from a building, and accelerates down toward the earth at 9.8 m/s^2.…

A: Given data:  A 4 kg bowling ball dropped from the building Acceleration = 9.8 m/s2, down towards the…

Q: A water bottle rocket is blasted up with an initial velocity of 40. m/s. Assume no air resistance.…

A: Given data:  A vertical upward projectile motion  Initial velocity (u) = 40 m/s Air resistance is…

Q: ds The accompanying figure shows the velocity v = dt body moving along a coordinate line. a. When…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 6. As a storm approaches, the wind is blowing with a velocity of 5 m/s north. Suddenly, in 4…

A:

Q: Which of the following statement is incorrect? A.î x j = k B.k. j = i C.ĵ · j = 1 D. k x k = 0 A) A…

A:

Q: A motionless minecart can be evenly accelerated to v at any time going through one powered rail…

A: Given, A motionless minecart, starting at rest can be evenly accelerated to v at anytime going…

Q: 5. A box falls off the tailgate of a truck and slides along the street for a distance of 62.5 m.…

A: Given data:  Distance (d) = 62.5 m Final velocity (Vf) = 0 m/s Acceleration (a) = -5.0 m/s2…

Q: 9. A car traveling at 27 m/s slams on its brakes to come to a stop. It decelerates at a rate of 8…

A:

Q: The person is roller skates so friction can be ignored. They are traveling at 2.0 m/s beginning the…

A:

Q: 3. A driver, driving a car with speed of 6.8m/s², saw a tree falling on the road. He applied the…

A: Given the speed(u) with which the driver was driving the car, u = 6.8m/s   [assuming the typo error…

Q: Joe was assigned to an expedition to the Arctic by the government to find the wrecks of a ship that…

A:

Q: Vs= 3 cos(1000 t) V, R1 = 10 kn, R2 = 20 kO, R3 = 10 kn Ica c1 = 0.2 F, C2 = 0.1 F. Find Vo at t =…

A: Given circuit is-  Vs=3cos(1000t) VAt node 2 has a zero voltage because virtual ground concept.Apply…

Q: An object started to slide down from rest along an inclined surface with a net acceleration of 4.2…

A:

Q: Q4. Given A = 2.0 î+3.0ĵ and B = 3.0 î-4.0 ĵ. Find (Ả × B)/(A.B):

A: The cross product of two vectors is given solving the determinant of the components of the two…

Q: 2. A ball falls with an acceleration of 10 m/s?. If it started with a velocity of zero, what will be…

A: Given data: The acceleration of ball is a=10 m/s2. Velocity required after t=2 s. Initial velocity…

Q: The trap-jaw ant, found throughout tropical South America, catches its prey by very rapidly closing…

A: (a).The slope of the Speed-Time graph gives accelaration. In this case ,Maximum Accelaration means…

Q: A race car has a maximum speed of .104 km/s what is the speed and miles per hour

A: 1 km = 0.6214 miles1 s=13600 hour

Q: A person jogs 4.0 km in 32 minutes, then 2.0 km in 22 minutes, and finally 1.0 km in 16 minutes.…

A: Given that-A person Jogs 4.0km in 32 minutesso, d1=4.0 kmt1= 32 minThe person jogs 2.0km in 22…

Q: If Rx is unique and we increase R1. How does L3 and L2 change to keep getting the same Rx? a. L2 and…

A: Have a look

Q: C1. You observed a stone falling freely from a cliff. The time it took to fall is 4 s. How high is…

A: When a stone is freely falling from a cliff, the initial velocity of the stone is equal to zero. u=0…

Q: Whats the resultant velocity of an airplane that normally flies at 235 Im/h if it encountered a 60…

A: Given that,Velocity of airplane : va = 235 (km/h)Head wind velocity : vw = 60 (km/h)Here we need to…

Q: Same object is first released from h and strikes the ground at the distance d, if it is released now…

A: Given, hieght h and 2h and distance for h is d

Q: A skydiver makes a jump into the stadium during an airshow. She waits 15 seconds before pulling her…

A:

Q: OBJA woman walks a distance of 250 m with an average speed of 1.5 m/s. How long did it take her to…

A: Given that,The distnace traveled by woman : d = 250 (m)Speed of woman : v = 1.5 (m/sec)Here we need…

Q: If it is starting from rest, what is the velocity in the first 5.50 m, W = 2225 N, P = 445 N, 0 =…

A:

Q: Yousuf travelled 35 km, South and then 21 km, North. His resultant displacement is a. 56 km, South O…

A:

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.