For #5 It's helpful to draw a free body diagram so you know which way the forces are acting on the block.
the weight mg is acting downwards, and you need to find the vertical and horizontal components of mg using sin and cosine. so do 15x9.8xsin40 which is the force. Assuming no friction, this is the only force acting on the block, as the forces on the vertical plane cancel out i.e the normal force and weight of the block.
after, just do F=ma And since you know F and m, solve for a.
Hey there,
Most mountains are formed mostly in Mount Vesuvius, Himalayas, and <span>Mount Kilimanjaro.
Hope this helps!</span>
The time taken by a person that is walking at 2 meters per second to travel 1200 meters is 600 s
v = d / t
v = Velocity
d = Distance
t = Time
v = 2 m / s
d = 1200 m
t = d / v
t = 1200 / 2
t = 600 s
Velocity is the rate of change of distance with respect to time. It is denoted using V. Its unit is usually m / s.
Therefore, the time taken by thy person is 600 seconds
To know more about velocity
brainly.com/question/19979064
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The student's path traces out a rectangle and she ends up at the same spot, so her <u>displacement</u> is 0 m.
On the other hand, she travels a <u>total distance</u> equal to the perimeter of that rectangle,
4.0 m + 8.0 m + 4.0 m + 8.0 m = 24 m
Answer:
166 kg *m/s
44 N upward
39 m/s east
Explanation:
The short answer: If it has direction, it's a vector.
The long answer:
Vectors, unlike scalars, have direction. The first one, 166 kg*m/s is momentum, since momentum is velocity*mass, and velocity is a vector, momentum must be a vector.
44 Newtons is a vector since it has direction, in this case, upward. Force is acceleration*mass, and since acceleration is a vector, force must be a vector.
39 m/s is velocity, velocity has a direction, therefore it's a vector.
13.7 grams is mass since mass doesn't change with direction, it's a scalar, the opposite of a vector.
86 miles per hour has speed, but speed has no direction, therefore it's a scalar.
12 meters is distance, distance has no direction, therefore it's a scalar.
