When a ball rolls down an incline, it gains speed but its acceleration remains constant. Is this true? Explain
What will be an ideal response?
Yes, it's true if the incline is free from obstructions and air drag is negligible. To say the ball's acceleration is constant is to say the force acting along the plane remains unchanged. This makes the ball gain the same amount of speed each succeeding second.
You might also like to view...
If there is a difference of 15° of longitude for each hour of time, how much difference in time is there for 1° of longitude? for 1r of longitude?
You may not always have a time zone map available, but by remembering the relationship of 1 hour for every 15° of longitude, you can easily calculate the difference in time between places. Indicating and using the standard meridians to determine time zones, solve the following problems. What will be an ideal response?
What classification describes a group of animals that share similar architecture, level of complexity, and evolutionary
history? a. order b. phylum c. family
d. genus e. kingdom
At 45 degrees S latitude, the angle of the noon Sun is lowest and the length of daylight is shortest on:
A) January 23. B) March 21. C) December 21. D) September 22. E) June 21.
The Bergeron process causes cloud droplets to grow because:
A) larger drops fall and collect smaller droplets in the cloud. B) freezing nuclei are much more common in the atmosphere than other condensation nuclei. C) water freezes instantly when its temperature reaches 0°C. D) the saturation vapor pressure is lower near ice crystals than it is near supercooled droplets.