A car that covers a distance of 2.4 km in one minute has a speed of 40 m/s (
yes
The set of points through which the object passes during its motion.
Path of movement.
) The opposite figure: Shows a player lifting ( weights from the ground upwards (case 1), then walking with them horizontally for several steps (case 2). 2. Marks In which case does the player perform work? With explanation.
Calculate : The work done when pushing an object with a force of 20 N over a distance of 10 cm
2 J
The total length of any path taken by the object during its moving from the starting point to the end point
Distance
One kilojoule equals 100 J
no
The measuring unit of displacement is the same as the measuring unit of distance.
yes
The amount of energy required to move an object through a certain displacement in the same direction as the force acting on it
Work
A person sitting on the ground carrying a backpack does work.
no
An object moves at a speed of 10 m/s, then moves a distance of 200 m in 5 s, What is the change in the speed of this object?
The speed of the object increased by 30 m/s
The shortest straight path connecting between the starting point and the end point in a constant direction.
Displacement
Calculate: The time taken by a car travelling at a speed of 50 km/h to cover a distance of 200 km
4h
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