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as & Exercises a e Search this book Figure 4.33 A baby is weighed using a spring scale. 4.6 Problem-Solving Strategies 23. A 5.00 x 10°-kg rocket is accelerating straight up. Its engines produce 1.250 x 10' N of thrust, and air resistance is 4.50 x 10 N. What is the rocket's acceleration? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 24. The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If 2 what is the mass of the car the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s plus its occupants? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. For this situation, draw a free-body diagram and write the net force equation. 25. Calculate the force a 70.0-kg high jumper must exert on the ground to produce an upward acceleration 4.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 26. When landing after a spectacular somersault, a 40.0-kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert if her deceleration is 7.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 27 A freight train consists of two 8.00 x 101-kg engines and 45 cars with average masses of 5.50 x 10" kg. (a) What force must each encine exert backward on the track to accelerate the train at a rate of 5.00 x 10 m/sf if the force of frictionis 2 phy-2053---gener..pdf POF

as & Exercises a e Search this book Figure 4.33 A baby is weighed using a spring scale. 4.6 Problem-Solving Strategies 23. A 5.00 x 10°-kg rocket is accelerating straight up. Its engines produce 1.250 x 10' N of thrust, and air resistance is 4.50 x 10 N. What is the rocket's acceleration? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 24. The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If 2 what is the mass of the car the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s plus its occupants? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. For this situation, draw a free-body diagram and write the net force equation. 25. Calculate the force a 70.0-kg high jumper must exert on the ground to produce an upward acceleration 4.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 26. When landing after a spectacular somersault, a 40.0-kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert if her deceleration is 7.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 27 A freight train consists of two 8.00 x 101-kg engines and 45 cars with average masses of 5.50 x 10" kg. (a) What force must each encine exert backward on the track to accelerate the train at a rate of 5.00 x 10 m/sf if the force of frictionis 2 phy-2053---gener..pdf POF

College Physics
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter4: Dynamics: Force And Newton's Laws Of Motion
Section: Chapter Questions
Problem 23PE: A 5.00105 -kg rocket is accelerating straight up. Its engines produce 1.250107 N of thrust, and air...
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as & Exercises a e Search this book Figure 4.33 A baby is weighed using a spring scale. 4.6 Problem-Solving Strategies 23. A 5.00 x 10°-kg rocket is accelerating straight up. Its engines produce 1.250 x 10' N of thrust, and air resistance is 4.50 x 10 N. What is the rocket's acceleration? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 24. The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If 2 what is the mass of the car the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s plus its occupants? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. For this situation, draw a free-body diagram and write the net force equation. 25. Calculate the force a 70.0-kg high jumper must exert on the ground to produce an upward acceleration 4.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 26. When landing after a spectacular somersault, a 40.0-kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert if her deceleration is 7.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 27 A freight train consists of two 8.00 x 101-kg engines and 45 cars with average masses of 5.50 x 10" kg. (a) What force must each encine exert backward on the track to accelerate the train at a rate of 5.00 x 10 m/sf if the force of frictionis 2 phy-2053---gener..pdf POF
Transcribed Image Text:as & Exercises a e Search this book Figure 4.33 A baby is weighed using a spring scale. 4.6 Problem-Solving Strategies 23. A 5.00 x 10°-kg rocket is accelerating straight up. Its engines produce 1.250 x 10' N of thrust, and air resistance is 4.50 x 10 N. What is the rocket's acceleration? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 24. The wheels of a midsize car exert a force of 2100 N backward on the road to accelerate the car in the forward direction. If 2 what is the mass of the car the force of friction including air resistance is 250 N and the acceleration of the car is 1.80 m/s plus its occupants? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. For this situation, draw a free-body diagram and write the net force equation. 25. Calculate the force a 70.0-kg high jumper must exert on the ground to produce an upward acceleration 4.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 26. When landing after a spectacular somersault, a 40.0-kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert if her deceleration is 7.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion. 27 A freight train consists of two 8.00 x 101-kg engines and 45 cars with average masses of 5.50 x 10" kg. (a) What force must each encine exert backward on the track to accelerate the train at a rate of 5.00 x 10 m/sf if the force of frictionis 2 phy-2053---gener..pdf POF
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