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Chapter 1: Q10Q (page 39)

A spaceship far from all other objects uses its thrusters to attain a speed of 1脳104m/s. The crew then shuts off the power. According to Newton's first law, what will happen to the motion of the spaceship from then on?

Short Answer

Expert verified

The spaceship will move with constant speed, until an unbalanced force starts acting upon it.

Step by step solution

01

Given data

Here given is a space ship moving at a speed of 1脳104ms-1.

02

About Newton’s first law

The first law of Newton's asserts that if a body is at rest or travelling in a straight path at a constant speed, it will remain at rest or continue to move in a straight line at a constant speed until acted upon by a force.

03

Analyzing the situation

According to Newton鈥檚 first law, the spaceship will keep moving with the same speed of 1脳104ms-1until and unless a force acts upon it and changes its direction or speed.

Therefore, the spaceship will move as it is.

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Most popular questions from this chapter

An object in the shape of a thin ring has radius a and mass M. A uniform sphere with mass m and radius R is placed with its center at a distance x to the right of the center of the ring, along a line through the center of the ring, and perpendicular to its plane (see Fig. E13.35). What is the gravitational force that the sphere exerts on the ring-shaped object? Show that your result reduces to the expected result when x is much larger than a.

Why do we use a spaceship in outer space, far from other objects, to illustrate Newton's first law? Why not a car or a train? (More than one of the following statements may be correct.) (1) A car or train touches other objects, and interacts with them. (2) A car or train can't travel fast enough. (3) The spaceship has negligible interactions with other objects. (4) A car or train interacts gravitationally with the Earth. (5) A spaceship can never experience a gravitational force.

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Figure 1.60 shows the trajectory of a ball travelling through the air, affected by both gravity and air resistance.

Here are the positions of the ball at several successive times.

Location

t(s)

Position ( m)

A

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B

1.0

(22.3,26.1,0)

C

2.0

(40.1,38.1,0)

a) What is the average velocity of the ball as it travels between location A and location B? b) If the ball continued to travel at the same average velocity during the next second, where would it be at the end of that second? (That is, where would it be at time t=2s )c) How does your prediction from part b) compare to the actual position of the ball at t=2s(location C)? If the predicted and the observed location of the ball are different, explain why?
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