Answer:
The correct option is greater mass.
Explanation:
- The force on the rifle is equal to the force on the bullet, according to Newton's third law, which states that every force has an equal and opposite response. The rifle, on the other hand, has a higher mass, hence its acceleration is smaller than the bullet's acceleration.
- We should know that according to Newton’s 3rd law of motion, if one object M exerts a force FM on a second object N, then N simultaneously exerts a force FN on M, and the two forces are equal in magnitude and opposite in direction:
ma= constant, here ‘m’ is the mass and ‘a’ is the acceleration. If acceleration ‘a’ of rifle is less than its mass ‘m’ should be more.
Hence, the correct option is (c)Greater mass.
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Answer:
19
Explanation:
I legit did this and it took 19.
Answer:
1.53 seconds
Explanation:
Applying,
T = 2usin∅/g................ Equation 1
Where, T = time of flight, u = initial velocity, ∅ = angle of projectile to the horizontal, g = acceleration due to gravity
From the question,
Given: u = 15 m/s, ∅ = 30°
Constant: g = 9.8 m/s²
Substitute these values in equation 1
T = 2(15)(sin30°)/9.8
T = 15/9.8
T = 1.53 seconds
Hence the time rate of flight is 1.53 seconds