Question: A gardener pushes a 12 kg lawnmower whose handle is tilted up 37 above horizontal. The lawnmowers coefficient of rolling friction is 0.15. How much

A gardener pushes a 12 kg lawnmower whose handle is tilted up 37° above horizontal. The lawnmower’s coefficient of rolling friction is 0.15. How much power does the gardener have to supply to push the lawnmower at a constant speed of 1.2 m/s? Assume his push is parallel to the handle.

Step by Step Solution

★★★★★

3.53 Rating (167 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Model Model the lawnmower as a particle and use the model of ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Scientists and Engineers Questions!

Risk management tools are used to protect businesses and mitigate this risk. A futures contract is one of various derivative instruments often used to minimize risk related to global currency...

1. A gardener pushes a mower a distance of 900 m in mowing a yard. The handle of the mower makes an angle of 40.0° with the ground. The gardener exerts a force of 35.0 N along the handle of the...

A gardener mows a lawn with an old-fashioned push mower. The handle of the mower makes an angle of 32 with the surface of the lawn. (a) If a 68-N force is applied along the handle of the 17-kg mower,...

Cycling For a touring bicyclist the drag coefficient C(f air = 2 ) is 1.00, the frontal area A is 0.463 m2, and the coefficient of rolling friction is 0.0045. The rider has mass SO.O kg, and her bike...

Problem 1: When you ride a bicycle at constant speed, nearly all the energy you expend goes into the work you do against the drag force of the air. Model a cyclist as having cross-section areaA =...

Homework # 32 - Work Handout Problems: 1. In which of these cases is a youngster doing work in the school gym? (a) Climbing up a rope. (b) Hanging motionless from a chinning bar. (c) Lifting a set of...

1. In which of these cases is a youngster doing work in the school gym? (a) Climbing up a rope. (b) Hanging motionless from a chinning bar. (c) Lifting a set of weights over his head. 2. A laborer...

friction. 12. A 20 kg wagon is pulled by a 10 N force at an angle of 30 to the horizontal. Ignore (a) Find the acceleration. (b ) Find the normal force . a = 0 . 5 m /s AX = ACOSO Ax = 10 cos 30 FN +...

Please I need help with these two question.. Please the hand writing ,I need it to be clear.. Thank you.. Question 1: A gardener pushes a lawnmower with a mass of 15.0 kg toward the east with a force...

A gardener pushes a lawn mower with a force F of 400 N at an angle of 50 degrees to a horizontal lawn. Calculate the effective pushing force F_h along the ground. Give your answer in N to 3...

In order to lift a shovel full of dirt, a gardener pushes downward on the end of the shovel

How is the mean effective pressure for reciprocating engines defined?

Its America, and people here think big. Its a cultural assumption to simply think that bigger is better, but is that always the case? Perhaps super-sizing it is not always the best way. Obese people...

Which of the following circumstances would likely cause an auditor to include an emphasis of matter paragraph in the audit report?Ogoing concern issue dependent on future financingOimproper revenue...

The nation of Waipo has recently created an economic development plan that includes expanded exports and imports. It has completed a series of extensive studies of the world economy and Waipos...

The purity of gold can be tested by weighing it in air and in water. How? Do you think you could get away with making a fake gold brick by gold plating some cheaper material?

Which has a greater buoyant force on it: a 25-cm 3 piece of wood floating with part of its volume above water or a 25-cm 3 piece of submerged iron? Or, must you know their masses before you can...

A rigid, lighter-than-air dirigible filled with helium cannot continue to rise indefinitely. Why? What determines the maximum height it can attain?

Albert Co. is considering a four-year project that will require an initial investment of $12,000. The base-case cash flows for this project are projected to be $14,000 per year. The best-case cash...

Project A is opening a bakery at 10 Center Street. Project B is opening a specialty coffee shop at the same address. Both projects have unconventional cash flows, that is, both projects have positive...

A 10-year convertible bond has a face value of $1,000 and pays an annual coupon of $50. The bond's conversion price is $40. The issuing company's stock currently trades at $30 a share. The company...