Answer:
a) , b)
Explanation:
a) The equations of equilibrium for the truck are: (x' is the axis parallel to ramp, y' is the axis perpendicular to ramp)
During braking:
The deceleration experimented by the truck is:
The braking force is:
b) The additional time required for the truck to stop is:
Answer:
There are two popular forms of softball, distinguished by the type of pitch.
Explanation:
Softball refers to a kind of sports that is similar to baseball in terms of game play but softball is played with a larger ball. The game of softball was first introduced as an indoor game in Chicago, Illinois, United States of America in the year 1887. Also, the field for playing softball is relatively smaller than that of baseball and as such its game play is quite faster.
Some of the kits and paraphernalia used for playing softball are base, bat, softball, gloves, jerseys etc.
There are two (2) main types of softball game and these are;
I. Fast-pitch softball.
II. Slow-pitch softball.
Hence, the true statement regarding softball is that, there are two popular forms of softball, distinguished by the type of pitch.
Answer:
<em>Helen's force must be of 40 N in the same direction as Jo.</em>
Explanation:
<u>Net Force</u>
When a number of forces are applied to an object, the net force is the sum of all the forces considered as vectors.
When all forces act on a straight line, only two possible directions are considered and they can be arbitrarily assigned positive and negative signs.
Jo pulls with a force of 100 N in a direction considered as positive (for example). Daniel applies a force of 140 N in the opposite direction, obviously negative. The net force of these two forces is 100 N - 140 N = - 40 N.
This means there is a resultant non-zero force in the direction of Daniel's. If we are told the net force is zero because of Helen's force, it must be applied in the same direction as Jo's force to balance.
Helen's force must be of 40 N in the same direction as Jo.
The amoeba is having a asexual reproduction and the two birds are not. The two birds are having a sexual reproduction.