Question

7. Which of the following relations is correct?
a. speed = distance x time
distance
b. speed =
time
time
C. speed =
distance
d. speed =
distance x time
8. An object moves for 50 seconds at a speed of 20 m/s. What is the distance travelled by the car?
a. 100 m
b. 10,000 m
C. 1000 m
d. 1000 km
9. The mass of a body
a. changes with place.
b. changes with time.
C. remains the same.
d. can be zero.
10. Which of the following instruments is used to measure weight?
a. spring balance
b. beam balance
C. stopwatch
d. thermometer​

Answer 1

Answer:

7. speed = distance ÷ time

8. c) 1000m

9. b) remains the same

10. a) spring balance

Hope this helps you...

Answer 2

Explanation:

7 answer d÷t

8th answer is C because 50 ×20 = 1000

Spring balance is the answer of the fourth

remains the same for the third option