Answer:8.69 m/s
Explanation:
Given
mass of Empty train
velocity of car
mass of Boulder
Since no External force is acting therefore conserving Momentum
Train and boulder moves with same velocity after collision
Answer:
(a) 13.43 N
(b) 1.62 m/s2
Explanation:
(a)Let g = 9.81 m/s2
The pushing force can be split into 2 components: 1 parallel and the other perpendicular to the floor:
- The parallel component:
- The perpendicular component:
Friction force is the product of coefficient and normal force, which consists of gravity and the perpendicular pushing force
(b) Horizontally speaking, the net force acting on the block is the parallel force subtracted by friction
The block acceleration according to Newton's 2nd law is
Answer:
T = 2π/ω = 2π / √(k/m) = 2π / √(60/5) = 1.813... about 1.8 s
Explanation:
Answer:
Acceleration a =-1.75 m/s²
Explanation:
Given:
Initial speed u = 24 m/s
Final speed v = 10 m/s
Time taken t = 8 sec
Find:
Acceleration a
Computation:
a = (v-u)/t
a = (10-24)/8
a = -14 / 8
Acceleration a =-1.75 m/s²
Faraday's law is
<span>∈ </span><span>= −N [(<span><span>d<span>ϕB)/(</span></span><span>dt)]
</span></span></span>where N is the number of turns, <span>ϕB</span> is the magnetic flux, and t<span> is time.</span>