A vector A = (3i - 2j + 4k) and D = (-5i + 3j - 4k). Find A · 4D.
University of Ilorin PHY101 2026-exam past question
- -180
- -140
- -120
- -148
Register free to see the answer and step-by-step explanation
More University of Ilorin PHY101 2026-exam past questions
Related questions
- A car's suspension consists of springs with an overall effective spring constant of 120 kN/m. How much would you have to compress the sprin…
- An object rotates with angular momentum L. What will happen to its angular velocity if its moment of inertia is doubled?
- A 3.00 kg particle has a velocity of (3.0i - 4.0j) m/s. Find the magnitude of its total momentum.
- An object A is moving with 5 m/s and object B is moving with 20 m/s in the same direction (positive x-axis). Find the velocity of B with re…
- A man climbs a mountain with an amount of energy E. The energy he gains when descending the mountain is equal to:
- When a box is dragged on the floor, the work done on the box in the form of potential energy is:
