Question

PHYSICS 14-1
b. 6/4
The Ratio between maximum height and square of time of fight is equal to.
a. 8/2
e. none of these
c. g/6
d.g/8
Identical
guns fire identical bullets horizontally at the same speed from the same height above level
planes, one on the Earth and one on the Moon. Which of the following three statements is/are true?
The horizontal distance traveled by the bullet is greater for the Moon.
II. The flight time is less for the bullet on the Earth.
III. The velocity of the bullets at impact are the same.
A. III only B. I and II only
C. I and Ill only D. Il and Ill only E. I, II, III
A large cannon is fired from ground level over level ground at an angle of 30° above the
horizontal. The muzzle speed is 980m/s. Neglecting air resistance, the projectile will travel
what horizontal distance before striking the ground?
A. 4.3km B. 8.5km C. 43km D. 85km E. 170km
A boy on the edge of a vertical cliff 20m high throws a stone horizontally outward with a speed of
20m/s. It strikes the ground at what horizontal distance from the foot of the cliff? Use g = 10m/s?
A. 10 m
B. 40m
C. 50 m
D. 50V5m E. none of these
A projectile is fired from ground level over level ground with an initial velocity that has a
vertical component of 20m/s and a horizontal component of 30m/s. Using g = 10 m/s2, the
distance from launching to landing points is:
A. 40m
B. 60m
C. 80m D. 120m E. 180m
An object is moving on a circular path of radius i meters at a constant speed of 4.0m/s. T
time required for one revolution is:​

Answer 1

Answer:

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