Why is less force needed to keep an object moving than to start the object in motion?

An object in motion needs less force to continue moving because the inertia or the resistance to change in motion was already overcome and the sliding friction that opposes a moving object is also lesser. Therefore, it is easier to move an object at constant velocity as you only need to overcome the resisting forces of the object.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).

i thinking chemical change