An airboat with mass 450 kg, including the passenger, has an engine that produces a net horizontal force of 970 N, after accounting for forces of resistance (see Fig. 4.7). (a) Find the acceleration of the airboat. (b) Starting from rest, how long does it take the airboat to reach a speed of 15.0 m/s? (c) After reaching that speed, the pilot turns off the engine and drifts to a stop over a distance of 80.0 m. Find the resistance force, assuming it's constant.

An airboat with mass 450 kg, including the passenger, has an engine that produces a net horizontal force of 970 N, after accounting for forces of resistance (see Fig. 4.7). (a) Find the acceleration of the airboat. (b) Starting from rest, how long does it take the airboat to reach a speed of 15.0 m/s? (c) After reaching that speed, the pilot turns off the engine and drifts to a stop over a distance of 80.0 m. Find the resistance force, assuming it's constant.

Name: The image illustrates an airboat on water, featuring a propeller on t
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: The image illustrates an airboat on water, featuring a propeller on the back. There are two labeled arrows indicating force: 1. **\( \vec{F}_{\text{prop}} \)**: This arrow points to the right, signifying the propulsive force exerted by the propeller

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A force F applied to an object of mass m, produces an acceleration of 3.60 m/s?. The same force applied to a second object of mass m, produces an acceleration of 2.00 m/s?. (a) What is the value of the ratio m,/m,? Be very careful in setting up ratios. Write down the relationships explicitly and do the algebra to obtain the proportionality. (b) If m, and m, are combined into one object, find its acceleration under the action of the force F. 1.29 m/s2
The washer launched on the ice surface with a speed of v = 30 m / s stopped after a time t = 50 s. Determine the force of resistance to movement and the coefficient of friction μ, if the mass of the washer m = 500 g.
A 60 kg skydiver falls, beginning at rest. This isn't an ordinary skydive though, because it's taking place on an alien planet where g = 8 m/s2. The drag force on the skydiver is given by FD = -0.14 v (N). Calculate the speed of the skydiver after they have fallen for 322 s, in m/s. (Please answer to the fourth decimal place - i.e 14.3225)
Starting from rest, Block A moves down the inclined plane with velocity given by 3t“, where t is in seconds, VA is in m/s, and 0= 30 degrees. Neglect friction on the inclined plane and in the pulleys, and neglect masses of the pulleys and rope. VA (a) How long will it take to lift load B by 7.0 m? (b) At that time, what is the velocity of Block A relative to the load B? E A Live
A mine shaft elevator and its payload have a combined mass of 1006 kg. Say the elevator is moving downward at 20 m/s and is brought to rest with a constant acceleration in a distance of 45 m.
An ideal massless rope passes over a massless, frictionless pulley. Block A with mass mA=7.2 kg, and block B with mass mB=4.9 kg, are suspended from opposite ends of the rope, as shown. (This contraption is known as an Atwood's machine.) Consider the motion of the blocks after they are released from rest. Let "a" be the magnitude of their acceleration, and let FT be the tension in the rope. Let upward be the positive y direction for block B, and let downward be the positive y direction for block A. What is the numerical value, in newtons, of the tension in the rope?
A 3500 g fireworks shell is fired straight up from a mortar and reaches a height of 210.0 m. (a) Neglecting air resistance (a poor assumption, but we will make it for this example), calculate the shell's velocity when it leaves the mortar. (b) The mortar itself is a tube 0.350 m long. Calculate the average acceleration of the shell in the tube as it goes from zero to the velocity found in (a). (c) What is the average force on the shell in the mortar? Express your answer in newtons and as a ratio to the weight of the shell.
Show that the acceleration of any object down a frictionless incline that makes an angle θ with the horizontal is a = g sin θ. (Note that this acceleration is independent of mass.)
While an elevator of mass 2530kg moves upward, the force exerted by the cable is 27.6 kN. (a) What is the acceleration of the elevator? (b) If at some point in the motion the velocity of the elevator is 1.20m//s upward, what is the elevator's velocity 4.00s later?
At Ted's request, Bill pushes the pizza box across the granite countertop towards Ted. When the box leaves Bill's hand it is sliding at 2.60 m/s. The box comes to rest over a distance of 110 cm. What is the coefficient of kinetic friction, uk, between the pizza box and the countertop? (Ignore air drag.)
A soldier jumps from a plane and opens his parachute when his velocity reaches the terminal velocity Vr. The parachute shows him down to his landing velocity of Vr. After the parachute is deployed, the air resistance force is proportional to the velocity squared, i.e., F = kV², where k is resistance coefficient. The soldier, his parachute, and his gear have a total mass of m. (a) Show that k = mg/V; (b) Develop a relation for the soldier's velocity after he opens the parachute at time 1 = 0. Parachute Figure Q5
A 2.75 kg cat moves in astraight line (the x-axis). Figureshows a graph of the xcomponentof this cat’s velocityas a function of time. (a) Find themaximum net force on this cat.When does this force occur? (b)When is the net force on the catequal to zero? (c) What is the netforce at time 8.5 s?