Editorial - Fisika - UC TKA
Problem 1
Benda I
6.76cm Benda II
1.042cm Benda III
5.7cm First statement is true.
Second statement true.
Third statement is false.
Fourth statement is true, the total is
13.5cm Fifth statement is false, it's
1.06cm turns into1.1cm
Problem 2
Problem 3
Taking positive,
t=6seconds Distance
s=6⋅4=24
Problem 4
Subproblem 4.1
A accelerates faster than B.
Clearly false, as A doesn't accelerate.
Subproblem 4.2
After
10 seconds, the distance between the2 cars is400m Let's check that.
The statement is false.
Subproblem 4.3
The
2 cars intersect after40 seconds
The statement is true.
Subproblem 4.4
The
2 cars intersect after3200m Clearly true, from the previous subproblem.
Subproblem 4.5
The second car has an acceleration of
4m/s^2 True.
Problem 5
Okay, so first let's find how long it takes for Charlie to drop from
45 meters.
That's
3 seconds needed to go through60m
That's the target speed.
Let
(v_0) be the starting velocity.
Problem 6
40 meters in1 second, that's the horizontal speed.
That means we know the tangent values.
Let's solve the problem now.
Yippee!
Problem 7
Let's find the friction force.
The car experiences a slowdown of
20m/s in a matter of60 seconds, so that's1/3 meters per second squared.
Problem 8
Only acceleration affects perceived weight.
Statements
1 , 4, and5 are true.
Problem 9
Problem 10
Problem 11
Momen gaya maksimal terjadi ketika komponen gaya yang tegak lurus terhadap lengan gaya berada pada nilai tertinggi, dan gaya tersebut diterapkan pada lengan gaya terpanjang yang mungkin.