If it sounds like rocks in a can, or like a Diesel engine, you might be experiencing detonation, which is really bad. It is caused by poor gas and/or ignition timing too advanced. Left unfixed, it will melt holes in your pistons.
To fix, get higher-octane fuel and/or retard timing
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Ticking noise on acceleration could be caused by a variety of issues such as a worn-out engine component like the lifters, an exhaust leak, or a damaged CV joint. It is best to have a mechanic inspect the vehicle to determine the exact cause of the ticking noise.
Acceleration due to gravity is expressed in the same units as any other acceleration ... Meters per second per second = m/s2 Also feet per second per second = ft/sec2 Any unit with dimensions of (length)/(time)2 is a valid unit of acceleration, such as (furlongs)/(fortnight)2
If acceleration is increasing with time, the velocity graph will be concave up. This is because a positive acceleration causes the velocity to increase over time, resulting in a curve that opens upward on the velocity-time graph.
The wrist watch may have stopped ticking due to a dead battery, mechanical issue, or water damage. It would be best to have a professional check and repair the watch to determine the exact cause of the problem.
An asteroid will have a larger acceleration when it is nearest to the sun due to the stronger gravitational force exerted by the sun compared to the earth. This acceleration causes the asteroid to move faster when it is closest to the sun.
The force that causes change in an object's motion is known as net force. Net force is the overall force acting on an object after all the individual forces have been combined. It can result in acceleration, deceleration, or changes in the object's direction of motion.