a
a
b
b
a
b
a
This will really help you learn a lot.
The friction is 2.5N. The Net force is 10 N - 2.5 N .= 7.5 N.
acceleration = 7.5 / 5 = 1.5 m/s^2
Answer:
a) The flea's speed when it leaves the ground is
b) The flea move upward while it is pushing off
Explanation:
Hi
<u>Knwons</u>
Mass , Work and Force
a) Here we are going to use , so
a) Here we are going to use , so or approx.
There are different forces acting on an object like nuclear force , gravitational force...plus external forces like friction and other..
net sum of all these is resultnat
<u>Answer:</u>
Yes
<u>Explanation:</u>
Average velocity is the ratio of total displacement and time taken for that displacement:
This means if displacement is zero, then average velocity will also be zero.
Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.
∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.