Answer:
AFter 3.5 s, the wagon is moving at: 
Explanation:
Let's start by finding first the net force on the wagon, and from there the wagon's acceleration (using Newton's 2nd Law):
Net force = 250 N + 178 N = 428 N
Therefore, the acceleration from Newton's 2nd Law is:
So now we apply this acceleration to the kinematic expression for velocity in an object moving under constant acceleration:
Answer:
True
Explanation:
All the planets have formed from a mass of spinning particles. As they formed from spinning mass the planets are still spinning due to the conservation of angular momentum. Hence all planets spins about an axis running through it.
All planets spin in counterclockwise direction when viewed from above. Except Venus rotates in anticlockwise direction and Uranus' axis of rotation is titled towards its side.
<span>Magnetic field lines form circles that go around the wire.</span>
rest is the state of a body which is stationary relative to a particular frame of reference or another object. When the state of a body does not changes with time with respect to its surroundings in a particular frame of reference that time it is said to be at rest.
in other words we can say that when a body has zero velocity and its position is not changing with time relative to its surrounding then it is said to be at rest.
For example a chair on which you are sitting is at rest or a table on which your desktop is kept is rest because its position is not changing.
Answer:
The answer is 7.52 m/s².
Explanation:
To determine acceleration, N = Ma×g ÷ cos Ф
N sin Ф = ma
a = g Tan Ф m/s²
g = 9.8 m/s² and Ф = 37.5° ( angle for the velocity and gravitational force)
so, a = 9.8 × tan (37.5°)
Acceleration has to be determined in order to get the final answer.
a = 7.5198 m/s²
