Types of curved mirrors
1 answer:
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Answer:
=
= 140 m / s
Explanation:
This is a projectile launch, in this case the components of the initial velocity are seen
Since there is no rice in the X axis, so the velocity is vx, it must be constant, at all times
=
= 140 m / s
The vertical component of velocity changes due to having applied the gravity fiate
=
- g t
Answer:
option C
Explanation:
given,
length of spring = 2 m
spring constant = k = 10 N/m
Pulling force = 3 N
resulting length of the spring = ?
using formula
F = k x
F is the force applied
3 = 10 × x
x = 0.3 m
resulting length of the spring is equal to
L = 2 + x
L = 2 + 0.3
L = 2.3 m
hence, the correct answer is option C