If the net force on an object is in a negative direction, what will the direction of the resulting acceleration be
1 answer:
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Answer:
K.E = 4800 Joules.
Explanation:
Given the following data;
Mass = 600 kg
Velocity = 4 m/s
To find the kinetic energy;
Kinetic energy can be defined as an energy possessed by an object or body due to its motion.
Mathematically, kinetic energy is given by the formula;
Where;
K.E represents kinetic energy measured in Joules.
M represents mass measured in kilograms.
V represents velocity measured in metres per seconds square.
Substituting into the equation, we have;
K.E = 4800 Joules.
Answer:
a. 11.3 units
b. 46.031°
c. 11.3 units
d. 46.03°
Explanation:
a. magnitude
B =
= √15.7² - 10.9²
= √127.68
= 11.3 units
b. direction
θ = cos⁻¹(10.9units/15.7 units)
= 46.031⁰ north of west
c. thge magnitude at 15.7 units is the same as solution a above
15.7² = 10.9² + B²
B = 11.3 units.
d. the direction is same as answer b.
θ = 46.031°
but the vector faces south of west