Question

Many of the bones of the body have an English name as well as a medical name, i.e., skull (cranium). List as many of these as you can.

for each multiple-choice question. 1. A cart of mass 4 kg experiences a constant acceleration of 3.0" What is the magnitude of the force exerted on the cart? A. 0.75 N B. 6.0 N C. 2N D3N 2. Displacement vector is 6.0 miles along the negative x-axis and a second displacement vector is 8.0 miles along the positive y-axis. What is the magnitude of the displacement? A. 10.0 miles B. 14.0 miles C. 2.0 miles D. 100 miles 3. In the statement" a 500 N block moves 5.00.". the soo N refers to the block's A Mass B. Force C. Weight D. Acceleration 4. Which of the following is NOT a vector quantity? A. Velocity B. Acceleration C. Speed D. Displacement 5. An object is dropped from a height. Once it is moving, which of the following is TRUE A. Its acceleration is increasing B. Its acceleration decreasing C. Its acceleration is constant D. Its mass is increasing 6. An astronaut applies a force of 945 N to an asteroid, and it accelerates at 7.00 the asteroid's mass? A. 71.0 kg B. 135 kg C. 441 kg D. 351 kg

Answer 1

1. Answer is C. 12 N

Because Force = mass x acceleration

= 4 x 3 = 12 N

2. Answer is A. 10.0 miles

By using Pythagorus theorum, If we suppose B is displacement along x-axis is 6 miles and C is displacement along y-axis is 8 miles, then,

A² = B² + C²

A² = (-6)² + (8)²

= 36 + 64

=100

A2 = 100

A = 10

3. Answer is B. Force

N is Newton which is SI unit of force

4. Answer is C. Speed

Because it do not indicate direction

5. Answer is A. Its accelaration is increasing

Because the object will be accelerated due to force of gravity

6. Answer is B. 135 kg

Because Force = mass x acceleration

Mass = force/acceleration

= 945/7

= 135 kg