Question

(b) A spaceship travels 36000 km in one hour. Express its speed in km/s
15. Based on the information given in the paragraph, answer the following question given below:-
In our daily life routine, we usually see some objects at rest and others in motion like birds fly,
fish swimming, planets moving around the sun, etc., are all in motion. When an object changes its
position with time, we often perceive an object to be in motion, e.g. when the position of a car changes
with time, we say that the car is moving or the car is in motion.
Uniform and Non-Uniform Motions
In everyday life, we seldom find objects moving with a constant speed over long distances or for long
durations of time. If the speed of an object moving along a straight line beeps changing, its motion is said
to be non-uniform motion.
On the other hand, an object moving along a straight line with a constant speed is said to be in uniform
motion. In this case, the average speed is the same as the actual speed.
The given data regarding the motion of two different objects Cand D is in a tabular form. Checke
them carefully
Time
Distance travelled
Distance travelled
by C (in m)
by D (in m)
9:30 AM
100
120
9:40 AM
200
190
9:50 AM
300
230
10:00 AM
400
350
10:10 AM
500
370
10:20 AM
600
410
10:30 AM
700
440
(1) State the type of motion performed by object A and object B.
(11) The speed of object A between time interval 10:00 AM to 10:10 AM is
a) 1.16 m/sec b) 0.16 m/sec ) 10 m/sec d) 100 m/min
(111) The distance-time graph for the motion performed by object A and B will be
a)A - straight line B-straight line
a)A - straight line B-curved line
a)A - curved line B-straight line
a)A-curved line B-curved line​

Answer 1

Answer:

Spaceship speed is 36000 km/h

So, in 1 hour spaceship travel 36000 km

Or we can say that in 60×60 second spaceship travel 36000 km

Therefore in 1 sec spaceship travel

= 36000/60x60

= 10 km/s

Explanation: